Duncan Trussell Family Hour - Avi Loeb
Episode Date: June 1, 2017Have scientists discovered an alien signal originating from the edge of the universe? Joining the DTFH to answer this question is Avi Loeb, the chair of the cosmology department at Harvard who hypoth...esizes that Fast Radio Bursts could be the wind in the sails of massive alien ships.
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Hello my dear sweet friends,
and welcome to the Duncan Trustle Family Hour podcast.
Do you think that aliens are currently living with us here on Planet Earth?
If you do, then you're an excellent company,
because so do I, but more importantly, so does Robert Bigelow,
the billionaire founder of Bigelow Aerospace,
which is a company that just created the Bigelow Expandable Activity Module,
also known as BEAM.
It's basically an inflatable bouncy house for astronauts
that is currently attached to the International Space Station.
He was recently interviewed by 60 Minutes,
and this is what he had to say about aliens.
Do you believe in aliens?
I'm absolutely convinced that's all there is to it.
Do you also believe that UFOs have come to Earth?
There has been and is an existing presence, an ET presence,
and I spent millions and millions, I probably spent more as an individual
than anybody else in the United States has ever spent on this subject.
Is it risky for you to say in public that you believe in UFOs and aliens?
I don't care.
You don't worry that some people will say that you hear that guy?
He sounds like he's crazy.
I don't care.
Why not?
It's not going to make a difference.
It's not going to change reality of what I know.
Do you imagine that in our space travels
we will encounter other forms of intelligent life?
You don't have to go anywhere.
You can find it here.
Yeah.
You could find it here.
What does he mean?
I don't know.
Well, I've got some guesses, but one thing I love about Bigelow
is he is not suffering from RTCS,
a plague that is currently sweeping across our beautiful planet
and has been for many decades.
Reality tunnel constriction syndrome.
Generally, it's a direct result of not coming into contact
with the very important mystical nutrients that a person needs
to have a solid spiritual diet.
The moment that you end up not taking in your metaphysical,
mystical vitamins is the moment your reality tunnel begins
to constrict and pretty soon, like some kind of sad,
emaciated, poor little puppy dog, you go scraping away
at the festering demonic underbelly of the media
and you start suckling at those black demon nipples
and slurping up all of that rotten fucking data
that tells you what to believe and what not to believe.
And that's when you come down with one of the worst symptoms
of RTCS, you stop asking the big questions
because you think you've figured everything out.
You think you know somehow some piece of you actually believes
that you, yourself, with your one human brain,
knows what scurries along the dark depths of the ocean floor.
You know what's inside the ice of insulatus.
You know what's hovering in the dark, distant cosmos.
Way, way, way out in the depths.
You've got it all figured out, man, and you know this is it.
This is it.
Skyscrapers, concrete roads.
We've got traffic lights and police cars.
And that's it, man, that's it.
And anybody who veers outside of that where there's the government
and the president and there's jobs and there's minimum wage
and there's problems with health insurance
and there's problems with war, but that doesn't really affect me
because I'm not in a place where there's war.
The moment you start going outside of that,
that's where people who are deeply sickened by RTCS
begin rolling their eyes at you.
That's another symptom of someone who has RTCS.
Eye rolls when anyone around them asks a question
that they think they already have the answer for.
The good news is a cure may be coming for this terrible plague,
and that cure could be that thanks to the advancing technology
that we have here on planet Earth, we may actually in our lifetime
get some real hardcore data that proves beyond a shadow of a doubt
that we are not alone in this universe.
And some of this data might be coming from the far, far, farthest edge
of the universe where astronomers have been picking up something
called fast radio bursts.
Fast radio bursts are bright, unresolved, millisecond flashes
found in parts of the sky outside the Milky Way.
Unlike many radio sources, the signal from a burst is detected
in a short period of time with enough strength to stand out
from the noise floor.
The burst usually appears as a single spike of energy
without any change in its strength over time.
Scientists are really interested in this right now
because they can only speculate on what could be powerful enough
to produce such an incredibly strong, quick blast of energy.
What is it?
Black holes colliding?
Magnetars?
Could it be a magnetar?
An actual super powerful magnetar?
Twinkle, twinkle magnetar
You're only 20 kilometers
But your three times as heavy as the sun
Oh no
Magnetar is the car
That guy drives home from the bar
He runs over three suns
But he's having fun
Magnetar eats your soul
Out of a black hole
Magnetar is like a magnetar
Get on your knees for the magnetar
Get on your knees for the magnetar
Please call me back, magnetar
Please call me back, call me back, magnetar
Call me back
That was Call Me Back Magnetar by Bill Cyanide, the dying guy
The truth is these FRBs really have people scratching their heads
We don't really know what they are
They're super powerful though
The burst from FRB 121,102 was emitted at a time
It was first evolving on our planet
Yet it was still detectable on Earth 3bn years later
Indicating it must have been caused by some of the universe's most energetic phenomena
Scientists calculate this eruption emits just for a millisecond
As much power as 500 million suns
Just think of that, a flickering pulse of energy more powerful than 500 million suns
It's there and then it's gone
It really got people scratching their heads
And some people think that it might not be originating from a natural phenomena
Like black holes smashing into each other
Or a neutron star or God throwing his remote control at the TV
Some people think that it might be coming from a very advanced civilization
That is using FRBs as some kind of propulsion mechanism
And one of those people is Avi Loeb
Who is the chair of the astronomy department at Harvard
And he's with us here today
We're going to jump right into the podcast
But first, some quick business
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We've got a new merchandise company
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Okay, pals
Today's guest is one of my favorite things about podcasting
From time to time, I get to talk to people
That I normally would never cross paths with
And I think Avi Loeb is one of those people
He's the chair of the astronomy department at Harvard
He has written many books
Most recently from the first star
To MilkaMeta
Which you can find at Amazon.com
If you live in New York City
You can see him give a talk
On these fast radio bursts
That you're about to hear about in this conversation
He is going to be at the Alchemist's Kitchen
On June 16th
Giving a talk about black holes
And extraterrestrial contact
And I'm sure a great many other things
So widen those magnetars
And send out as much love as you can
To today's guest, Dr. Avi Loeb
Dr. Loeb, welcome
You have been, I guess, speculating that
FRBs that are being picked up right now
Could potentially be some kind of alien signal
Is that correct?
Yeah, but first we need to probably explain
What FRBs are
FRBs are fast radio bursts
It's an abbreviation
And these are flashes of radio waves
That last thousands of a second
At least one of them seem to originate
From the edge of the universe
That far we know
But we don't know what the source is
And there are thousands of them
Every day across the entire sky
And we don't know where they come from
And so conventional astronomers
Usually assume that they are related to stars
And the conventional wisdom
And some people believe that
They probably originate from very compact stars
Stars that weigh roughly the mass of the sun
But are as small as New York City
About 10 kilometers or so
These are called neutron stars
And some people speculate that
Perhaps when they are born
They have very strong magnetic fields
And they radiate very brightly
What we need is a source
That is 10 billion times brighter
Than any other radio source we have seen
We have seen neutron stars radiate
They are called pulsars
They have a beam of radiation
That sweeps across the sky
And we see it just like fast radio bursts
But it repeats again and again
It's like a lighthouse
However, those sources that we have seen
Are 10 billion times fainter
Than what we need for a fast radio burst
Because fast radio bursts originate
From the edge of the universe
And so we suggested that perhaps
They are not natural
Perhaps they are artificial in origin
Perhaps there is an advanced civilization
Out there that is producing fast radio bursts
Many of such civilizations
And the question is why
Obviously it's not useful for communication
Because if you send a message
Billions of light years away
It will take billions of years
To get a response
So it doesn't make sense to send
A very powerful radio beam
Just for communication
However, it occurred to me
That since our civilization
Is contemplating right now
Using a new technology for travel
Perhaps that's the origin
Of those fast radio bursts
And what I'm referring to
Is a project called Starshot
That I'm actually leading
As the chair of an advisory committee
Yeah, he's on the board
The person that initiated it
And that funds it at the moment
Is Yuri Milner
And he committed
A hundred million dollars for the next five years
To do a feasibility study
Of a new technology that will enable us
To reach to the stars
In other words, the idea is to send a probe
To the nearest star
That will reach the star within our lifetime
Now the nearest star is four light years away
So it takes like four years to reach us
And therefore if you want to get to the star
Within our lifetime
You need the spacecraft to move
At a significant fraction of the speed of light
Let's say fifth of the speed of light
Would bring it to the nearest star
Within twenty years
So the question is how to launch
A spacecraft at the fifth of the speed of light
That seems like a great challenge
And the only technology
After studying it for a while
The only technology that
Together with my students and postdocs
We came across that seems feasible
Is a light sail
The idea is just like a sailboat
That is being pushed by wind
You can push a sail with light
When light bounces off the sail
It will give it a push
And what you need is a very powerful beam of radiation
So the goal of this project
Is to develop a very powerful laser beam
That will be focused on a sail
That is roughly twice the height of a person
About four meters or so
What's the sail made of?
So the sail needs to be very light
Because only then one can push it
To a fraction of the speed of light
So it has to be on the mass scale
Of order a gram
And also it will carry with it
A gadget, a chip of electronics
That carries a camera, a navigation device
Communication device
And so the idea is to have a gram scale spacecraft
That is being pushed by a very powerful laser beam
Of the order of 50 gigawatt
Which is the amount of power that was used
To lift the space shuttle
So basically what you need is
To give a single gram of material
The same amount of energy
That the space shuttle got
In order to be lifted off the earth
And you need to do it within a couple of minutes
So the launch time is a couple of minutes
And then there is a cruise that takes 20 years
To get to the Alpha Centauri system
The nearest star system
So you're saying that if you blast this
I'm sorry, if you blast this sail
With this powerful laser beam
You only have to do it for 20 minutes
For two minutes
For two minutes
That's it
Why wouldn't you do it longer to make it go faster?
That's a very good question
It would be easier if you could extend the illumination
Over a longer time
Because then you don't need a laser as powerful
As you need in our case
But the problem is
The laser can be focused only out to some distance
You need it to be focused on a few meters
The spot of the laser needs to be
Roughly the size of the sail
Once you go far
More than 2 million kilometers from earth
This beam of the laser will not be focused anymore
It will start diverging
And as a result
You can't really accelerate the launch
Effectively the sail over greater distances
Than roughly 5 times the distance of the moon
So you have a limited distance
Along with
You can accelerate or launch this spacecraft
Sort of like imagining a race
Where you have a certain distance
That you have to go through
And obviously
You need to do it very quickly
So that you reach a fraction of the speed of light
So you need to accelerate this sail very quickly
Because otherwise it will traverse this distance
Before you reach a fifth of the speed of light
Gotcha
So you're saying that
Here on earth we've already discovered the potential
For this being a way to travel through space
And it appears that you have detected
Possibly a civilization that
Figured this out a very long time ago
And it's producing a lot more energy
Than what we would be producing here
That's right
So the idea is that we are now contemplating this technology
It will take us a while, maybe a few decades
To bring it to maturity
But you can imagine another civilization out there
You know there are billions of stars in the Milky Way galaxy
With planets like the earth around them
And so you can imagine
Even if a small fraction of those planets
Have intelligent civilizations
There might be a civilization out there
That is much more advanced than we are
They had a billion years maybe
To develop technologies
And so they already mastered this technology
To a much greater level than we can imagine
They can produce a much more powerful beam
And so the question then is
How would you see a signal from such a beam
There would be some leakage
Around the sail that is trying to push
And as the beam sweeps across the sky
It will appear as a flash of light
For us when we observe the sky
And so I was wondering
Other flashes of light
And perhaps these fast radio birds
Are an example of such civilizations
That was the suggestion that we made
And this is astounding
Usually when you hear things like this
Speculations like this
It's not coming from Harvard professors
Isn't this a little risky
For you to put out there?
Yes, well it is risky
In the sense that it's probably
Most likely to be
The origin of fast radio birds
Is most likely to be much more mundane
But I think we should keep it in mind
The reason I put it out is because
Even if fast radio birds are not
Those flashes of light
There might be others
And people have to keep that in mind
Doing science is often like a detective story
You should have an open mind
Because sometimes things you don't expect
Happen to be real
We don't know whether there is an advanced civilization
Frankly, I believe that we are not special
I believe that if we find life here on Earth
It exists elsewhere
Definitely primitive life
And quite likely intelligent life
At the level of intelligence that we have
And perhaps even more
And so just out of modesty
I think we should be modest enough to admit
That there might be technologies
Far more advanced than we have
Out there and we should just look for
Possible signals from them
This is just a sign of modesty on our side
If you believe that we are really special
That we are the only ones in the universe
Then perhaps you are justified in ignoring the sky
And just focusing on Earth
And reading the morning newspaper every day
I just don't understand how people can adapt
To this point of view
Given the fact that there are more planets
Habitable planets like the Earth
In the universe
Than grains of sand on all the beaches on Earth
So just think about it
It's a huge number
And to contemplate the idea
Or to believe that we are special
Is really, to me, sounds more crazy
Than to look at the sky in a search for flashes of light
But that's kind of a burn to some of your colleagues
Surely you probably work with people
Who think that, right?
Okay, so let me tell you that it's not
It's actually more surprising than you expect
I'm not just one of the scientists out there
That writes papers and so forth
I'm also chairing the Astronomy Department at Harvard
So I'm the chair of the Astronomy Department
I'm the director of two centers at Harvard
One is the Institute for Theory and Computation
And the Black Hole Initiative
Which is the only center in the world
That focuses on black holes
So a lot of my work is actually
A conservative mainstream
But I do take risks
Because I think that, you know
Just like in investments
Financial investments in the stock market
In bonds and so forth
You have to diversify your portfolio
Because if you keep doing the same thing
Low risk stuff
You are unlikely to discover important things
So it's always important
And I advise that
I give that advice to young scientists
That there should always be
A fraction of their portfolio
Dedicated to risky investment
Now the question is what fraction
My advice is 20 to 30%
About a quarter
And then without that
If we only play conservative
We will miss some of the most exciting discoveries
That we could have made
And so just like investments
Financial investments
I think it's important to invest your research time
In a way that includes some risks
Invest 30% of your scientific career
Into aliens
I love it
I wouldn't say necessarily aliens
There are many other risky endeavors
Sure
And science is so exciting these days
At least astrophysics
I wouldn't speak about all sciences
But astrophysics has so much going on
That there are many avenues
To risky investments
And I can mention fewer
I'm sorry
Not to cut you off, forgive me
One of the reasons that astrophysics
Is so exciting right now
Is because the technology emerging
On planet earth is allowing us
To have more refined ability
To detect what's out there
Is that why it's more exciting?
Yes, there is actually a book
That advocates exactly what you say
That technology enables
Discoveries in astronomy
So that's definitely a very important aspect
But if you look, not just about the tools
If you look at what we find
There were major discoveries
Over the past couple of decades
That are really opening new windows
Into the universe
So one of them is the discovery
Of habitable planets
Planets like the earth
Roughly the size of the earth
That are in the
Goldilocks region
On their star where liquid water
May exist on their surface
If the planet is too close to the star
The atmosphere
And the water would evaporate
If it's too far the water would freeze
Into ice
And life as we know it requires
Liquid water
So you need to be in some zone
Where the star is warming
The planet to the right temperature
Roughly the temperature of the surface
Of the earth, room temperature
And we
Just over the past decade
Discovered such planets
That are in the habitable zone
About a quarter, we know that a quarter
Of all the stars in the Milky Way galaxy
Have habitable planets
Roughly the mass of the earth
And so that's a very important discovery
The next step would be
To figure out if they have life
And there are plans
On how to do that
Some of these planets are passing in front
Of their star
They are just oriented the right way
That they pass in front of the star
And when the star light
Shines through their atmospheres
We can in principle dissect their atmospheres
And try and figure out which molecules
Are in the atmosphere
Is their oxygen
Oxygen is a signature of life
Maybe methane
Or other gases
So that's something that could happen within
A decade or two that we will start getting
Clues about the composition of the atmospheres
Around habitable planets
Does that fraud? Does it?
The planets were discovered
Around the nearest stars
The nearest star is Proxima Centauri
And it does have
A habitable earth
Next to it
Wait, I'm sorry
You're saying the earth
The planet near Proxima Centauri
You already know is habitable
Yes
I have some wealthy friends
And I tell them to buy real estate
On the planet
If the value will only go up
Hey, it just so happens
I'm selling real estate on that planet
If they're interested
Give them my email
The key question I should say
We don't know if it has an atmosphere
So Mars is habitable
Mars would be considered
A habitable planet
It doesn't necessarily mean
There's going to be waterfalls
And jungles
That's right
That's right
In order to have liquid water
You need an atmosphere
Because if you have ice
And you just warm it up in vacuum
Then it turns into gas
Directly
It doesn't turn into liquid
To have liquid water
You need an external pressure
You need an atmosphere
Some gas surrounding you
And that's why an atmosphere
Is crucial for a planet
So Mars lost most of its atmosphere
And as a result
It doesn't have rivers
But it could have had
Before the atmosphere was lost
The question is
To why Mars lost its atmosphere
I mean, there are several possible scenarios
One is that
Well, Mars is smaller than the Earth
It doesn't have a strong gravity
To hold on to the atmosphere
And also
It doesn't have a strong magnetic field
To keep the atmosphere
So the atmosphere may have been stripped
By the illumination from the sun
By the solar wind
Right now
Indeed, Mars is not habitable
In the way that the Earth is
But we don't know
If the planet near Proxima
Has an atmosphere
And there is a way to find out
Within a couple of years
With a new telescope
That will be launched to space
In a year and a half or so
Called the James Webb Space Telescope
It could tell us
The temperature contrast
Between the two sides
Of that planet
That planet moves around Proxima
In 11 days
So it takes
One year is 11 days
For that planet
You know, if there is anyone there
They celebrate their birthdays
Every 11 days
365
And the planet is locked
We believe it's facing the star
On the same side
All the time
So basically
There is a permanent day side
And a permanent night side
My daughter
I have an 11 years old daughter
And she thought that it would be good
To have two houses on such a planet
Because you want one house
Where you can go to bed
It's a permanent night side
And then the other house
Or place where you can
You know, during your work time
Or on vacation
You can go to
You need to introduce her to sleeping masks
Hey, I'm interested
I'm sorry
I want to know
If you feel personally
When you tell me this
It is exciting
But it's equally frustrating to me
Because even if this
Is discovered to be a habitable planet
With an atmosphere and with water
We're never going to get there
Doesn't that bother you
On some existential level
The feeling of like
It's almost like being on a
Born on a desert island
And then getting some
Very rudimentary sketch
Of some amazing city
Somewhere on the mainland
That you'll never see
Doesn't it drive you nuts?
No, I'm actually more optimistic than you are
I believe that our civilization
Will get there eventually
It will take a while
If we use the standard rockets
The same as the Apollo mission
It would take us about
80,000 years to reach that planet
But since
Now we're developing this technology
For Starshot
In principle, if we develop it
To an advanced enough level
We could launch
More massive spacecraft
That could potentially
Carry
Humans
In the long term
That will take a while
But I think that
If our civilization survives
For another million years
There is very high likelihood
That it will spread around the galaxy
And
You think that our civilization
Is going to survive that long?
Isn't the general prognostication
Worth working on?
The problems that we have
Between people are worse
Than in understanding nature
In physics
I'm much more optimistic about
The ability to develop the technology
That is needed than I am about
The solutions that we will find
To human relations
Word politics
It's quite possible that
Our planet will be destroyed by bad politics
That's terrifying
But isn't one of
When I think about
Once I interviewed
Once I interviewed
Some folks from Singularity University
In San Francisco
And they were talking about
How they're interested in using technology
To solve the big problems
If you solve the big problems
The little problems get solved
Along with the big problems
For example, if we can
Create a technology that
Can easily produce clean water
Then we'll get rid of a lot of the diseases
Just by cleaning the water
Definitely
Everything physical
Can be solved by technology
But I worry about the mental
Aspects of life
The politics has to do
Not with physical objects
It has to do with human pride
Jealousy
Hate and so forth
These things cannot be cured by technology
Technology can only exacerbate them
The latest example is
The fake news on Facebook
The fact that you have better communication
Between people doesn't make them better
Yeah, because Trump
It's just Trump tweets
Trump tweets could cause the apocalypse
It's one of the strangest things ever
But one of the solutions
One of the solutions
Would be
That
You and the people that you're working with
Managed to locate
Some advanced civilization
And you somehow
Figure out a way to gather
Information from them
This is one of the
That would be amazing
To me it would feel like
Cheating in an exam
If we were to ask them to solve our problems
We don't know what most of the
Universe is made of
It's called dark matter
We just gave it a name
We don't know what the substance is
But most of the matter in the Universe
If we ask another civilization
It will feel like cheating
In an exam
It's possible they had another billion years
To explore the Universe
So they know much more than we do
But we need their help
They will give us a much better perspective
Because we will feel as if
We are part of one team
Here on earth and there is much more out there
And I think once you get
That perspective
The internal fights that we have
Become less meaningful
It's better for us
To cooperate and constructively
Work together
To increase
Enhance the longevity of our civilization
I do believe that it will
Actually lead us to a better place
If we find evidence for others
I should mention that
Astrophysics
Has many other examples
Of exciting discoveries
We talked about planets
Just a year ago
The first discovery
Of gravitational waves
These are ripples in space and time
According to Einstein
Space and time are not
Rigid entities
They are being distorted
By objects around them
If objects move
There are ripples in space time
That propagate out
When you throw a stone on the surface
Of a pond you get waves out
When objects move in the universe
You get gravitational waves
They were never detected directly
But last year
An experiment
Called LIGO
Detected the first signal
Of gravitational waves
Coming from the edge of the universe
From a collision between two black holes
It was not only the messenger
That was new
But actually the message
That it carried was amazing
It was a message about
Two black holes
Two very compact
Structures of space and time
Colliding with each other
Creating a storm
A space time storm
At the edge of the universe
And those waves from that storm
Reached us a billion years later
And
With our most exquisite
Detectors we were able to detect them
And it's
Quite an amazing
Fit
Maybe you could help
Explain this to me a little bit
I read a little bit about this
Apparently there are these things called interferometers
That's what they're called
Interferometer
But the essence of the thing is
These waves when they pass through
Planet Earth
It's not like wind blowing through
It's like for a millisecond
Everyone
On Earth
Was like
Contracted and expanded a little bit
Like the fabric
Of time and space
That is mind blowing to me
That we are that interconnected
With the universe
That these types of events
Happening so far away
Are actually causing
Our atomic structure
To change
Temporarily
Yes, it's correct
But it's a very slight change
We're talking about one part
In 10 to the power
21 or so
It's really tiny
You cannot notice that
Through our bodies
There are hundreds of
Neutrinos that cross
Every square centimeter
Inside
Every square centimeter
Every nanosecond
There are hundreds of neutrinos
From the big bang that are crossing us
We are obviously
Influenced by everything
But the effect
Of those gravitational waves
Of those neutrinos
Are completely negligible
They're not affecting us much
The only thing that truly affects us
Are for example cosmic rays
Are very energetic particles
That come from exploding stars
At great distances
And they can cause mutations
They can affect
The way that we
Evolve as biological creatures
I'm interested in that
Can we talk about that for a moment
Because I think one of the
Wonderful things about your work
Is the encouragement
For everyone to think outside
The box a little bit
Where you can make the really big discoveries
And when we're talking about
This idea of there being other
Civilizations out there
Then we kind of create a potential
Spectrum of intelligence
Surely human beings
Aren't the
An example of the height of intelligence
In an infinite universe
Surely
There must be some spectrum of intelligence
I should mention to you that
We had some other ideas of
Searching for them
For example we can search for industrial
Pollution in the atmosphere
Of other planets
Just like we pollute our atmosphere
You know there might be signs
Of other industries out there
And that is potentially feasible
With the next generation of telescopes
But doctor don't you think that
If you know
Even looking for you know
When we look for smog
Facing these super advanced civilizations
On our own
Human
Unfolding
On our planet
That's right
Our imagination is limited
By what we see around us
And it's possible that nature
Is much richer than we can imagine
And that often happens
To be the case when we make new discoveries
But
If you want to guide yourself
In the right direction
It's best to imagine what you see around you
Because
You know we can't do much better
Another thing that we see around us
Are city lights
And one of the papers I wrote
Five years ago
Was to ask
How far can we see a city like
Tokyo for example
Suppose there is a large
Space craft
That shines as brightly as the city of
Tokyo
Turns out that you can see it all the way
To the edge of the solar system
With the biggest telescopes we have right now
So when I asked an astronomer
Someone that discovered
A lot of objects at the edge of the solar system
I asked him
Have you checked whether they produce
Their own light
Or whether they are just reflecting sunlight
And he said why would I check
It's obvious that they just reflect sunlight
Those objects that I find
Many times people have a prejudice
They believe they know the answer
Before they check it
And in the case of artificial lights
For example you can tell
If there is an artificial source of light
Because as it changes its distance
From you
It doesn't get
Fainter as fast as it does
If it reflects sunlight
And so
People just make assumptions
That heavy objects fall faster
Than light objects
You're talking about your idea
In the Kuiper Belt
Kuiper Belt
Right, that there could possibly
Potentially be
Artificial light coming from there
And we just don't know because we've just been assuming
That we're seeing reflected light
That's right
But has anyone tested this?
Have you tested this?
After you spoke with your colleague
Did anyone begin to do
Your calculations to determine
If this light is reflected
Or artificial?
Not yet
I'm still looking forward to
An undergraduate student
That will want to do that with me
And that would be great
We haven't yet done it yet
The technique to figure out
If it's artificial light
Or reflected sunlight
Is just by seeing how the object
Deems as it moves away from us
Because reflected sunlight
The amount of light
Intercepted by the object
Goes down as it moves away
However, if the object produces its own light
Then
The light, the source of light
Stays the same as it moves away
And so you can tell the difference between the two
By monitoring how faint does
The source get as it moves away from us
I have to ask this
This is way out there
But I get to do that because I have a podcast
Because we're talking about this
Something that is
Astounding to imagine
That there is a civilization sending out
These incredible bursts of energy
To propel their ships through space
But
Couldn't there be the potential
For
Advanced civilizations
To communicate with us
In ways that don't match
Our current understanding
Of how we communicate with each other
And this is something
Are you familiar with Terrence McKenna?
No, I'm not
But I completely understand
Your question and I agree with it
Go ahead.
In other words
You say, okay, cosmic rays
They can affect our evolution
And if we're talking about
A civilization that is so advanced
That can propel a massive ship
Using some
God knows where it's getting the energy from
Then
Couldn't it equally be possible
That an advanced civilization
Could in some way or another influence
Cosmic rays
To produce
The biological life
That it could
Send out pulses of
DNA influencing
Rays that could actually
Sort of grow life from
Potentially habitable planets
Or is that crazy?
No, this is a very
Interesting question
Well, first of all, I should mention that
With respect to this hypothesis
Of fast radio bus, we calculated
How much energy is needed
And you need roughly the amount of energy
That is intercepted by the earth
From the sun.
So that is
The reason that we suggested
That it might be
Interesting because a planet like the earth
Collects enough energy
Per any time to power
These beams of radio waves
But coming back to your question
This is an excellent question
There are ways to
Not only affect the biology on a planet
But also in principle
Terraform a planet
A planet that was not habitable
Could become habitable
Work on it if you do some engineering
And that could be done
In the form of
Introducing an atmosphere to a planet
That didn't have an atmosphere
Or illuminating it
Or directing starlight on it
With big lenses
Or all kinds of possibilities
There is a way
Of affecting the evolution
Obviously of life on a planet
From a distance
It's also possible that they don't care about us
About the creatures
Like we are
Because we are so primitive
It's just like you walk down the street
And there are ants on the pavement
And you don't really care about them
You step on them and you move forward
I try not to step on the ants
I try not to step on the ants
But also
When we're talking about
Earlier you were saying
We have to use what we know as humans
To understand what's out there
Of so below
If we're talking about a super intelligence
Out there
One thing that I think about
Is how I
If we were together
And I somehow
Pulled a puppy dog out of my pocket
And put it on the table
We would both start playing
With a puppy dog
That's something we would do
You would tease it a little
That's fun to do
This is an example
Of a hierarchy of intelligence
Because on one
Into this temporary spectrum
Of intelligence we have you
Then much further down
Is me
And then there's the puppy dog
I once said that
I would
Sometimes
When I'm speculating about a super intelligence
And maybe this is naive
I like to think of it as more
Than just like look at those little ants
No need to interact with them
I would think that if we were intelligent enough
Then when we looked at an ant
It wouldn't just be an ant anymore
We would understand
It's quite possible
That they're looking at us
They have not
Interfered in any of our affairs
Over the past thousands of years
Right I'm sorry
I'm sorry to cut you off
I'm sorry just right there
May I stop you just right there
The assumption is they haven't interfered
With our affairs
And a lot of us think
Actually
They have been involved
With us but the way that they've been
Involved with us is in
You know
God I'm sorry to say this
Please forgive me you are a Harvard professor
Please forgive me
But a lot of us think they've been
Involved by a decade alex
And that
Scyvenes
Mushrooms
Caicha in the case
Of m samen
The Diemethyltreptomen
These states of consciousness
They produce
What's interesting about
Them is people who go into these states
Experience similar things
Yes well you see I'm a scientist
It's not so much
The title that I have at Harvard
But the way I treat
Evidence is
I want evidence to be reproducible
Yes
And scientific in the sense that
Independent people will agree on the evidence
But this is what's interesting
If you can produce such evidence
From any experience doesn't matter
That is reproducible and that many people
Will agree provides solid
Proof then that would be fine
But so far we haven't seen such a thing
Doctor come to New York
And I will produce
Evidence
That is reproducible
I'm talking about the quarters that I'm
Going through
On my daily routine
I understand
The other thing I should say is that
If we succeed with star shot
It's possible that once we send the spacecraft
Outside the solar system
We will get a message
To the stellar club
Right
But we've been
I'm sorry to keep going back to this doctor
I will stop
Because I know this is maybe outside of
What you specialize in
But this is one of the
Fascinating things that humans do
And I think it's
A very important
Maybe one of the most important things
Is to gaze out into the universe
And say is anyone out there
It's the first thing
We should be doing that
But also what's interesting
Is that we do
Have these compounds
That when people ingest them
They do come
Into contact with
An intelligence and you say
Well this needs to be reproducible verifiable
And what's curious about it
If you look into dimethyltryptamine
Especially you will find a similarity
In these experiences
And it's absolutely
I know
It sounds so insane
But the problem is
A lot of us you consider ourselves
Explorers in this realm
We're kind of like the lunatic explorers
From
The time before we knew what was in the amazon
And so we come back
From these states and we tell these stories
And people hear them and it sounds insane
And yet
People are
Reporting contact
In these states of consciousness
And I just have to say
If there is an advanced civilization
And it's interested in communicating
With
Biological life that has reached
Some level of consciousness
It might choose to do this
In a way that doesn't involve
Technology
Well maybe I would not exclude that
But by the way
You know it needs to be
Very dense that one can look at
And
Demonstrate that
That indeed it provides
New information that was not known before
And you know it has to pass
Scientific tests
Well this is and isn't this the interesting
Problem because it's like I for example
As
I'm not aware of their being
On planet earth right now
A video
Of someone's dreams
And yet
Everyone it's inarguable
That dreams are a phenomena that really happen
Right
And so in the same way
We have and we are getting
It's really curious you know because we are
Beginning to understand how these psychedelics
Effect the human brain and
I guess
The essence of it is this
In the same way that you are saying
This person told you
Why would we ever look at that
Why would we ever we know it's light
Reflecting in the same way
It feels like there is this
Overlooked
Element of human experience
That
Is innately
Alien which is the
Psychedelic experience and yet because
We don't have the gauges yet
To measure what's happening in there
Outside if we could do MRIs
We know there's a kind of super connectivity
Happening in the human brain when people are on
Silosybing or LSD
We can't project these images yet
And
From the scientific point of view
If you ask people that are
In the medical sciences and so forth
They would say that your brain
Is going through something but it has nothing
To do with the world around the brain
So it's not like
A scientific detector like a telescope
Looking at the sky and collecting it
Right but doctor
What we are saying is maybe there is some communication
That
We're being affected by cosmic rays
On a daily basis
Neutrinos are zinging through us
All the time so there is a
And I don't know that you would call that data
It's kind of chaos
Pouring out of time
Interacting with us at the atomic
Level
That's how we understand it right now
But who knows what those are
Who knows if like at every moment
We're being washed with
Information that the human brain
Is able to pick up on
When it enters into a kind of refined state
Of consciousness and all the
Mythologies of people
Who have been contacted by
God, the burning bush
The millions of stories
These are just kind of a primitive
A primitive
Description of
Contact with some kind
Of superintelligence
It would be fantastic
If that happens to be the case
And
I will be the last one
To say that a particular
Path to knowing more
About reality should be excluded
I would say
This should be explored
And scientists should find out
If there is something in it
Doctor, this is your job
You as part of what you do
Should
Consider
Taking ayahuasca
Or some kind of psychedelic
For someone like me
When we take psychedelics
And we lay back and close our eyes
And see these incredible patterns
Geometries
It feels a little bit like a chimpanzee
That managed to get into the
Cockpit of the space shuttle
You're looking at something that is
Completely ununderstandable
But for a mind like yours
To enter into that state of consciousness
Even if you come back from that
Reporting, you know, that's just
Some kind of like biological
Shift in the way that we
Process information in the human brain
It's not aliens you hippie
Go back to the fish concert hippie
Even that
It would be a great gift
To this particular field
Of research, but I think
A mind like yours going into
That state and seeing
These patterns that are
So profoundly
And impossibly beautiful
You might be able to extrapolate from that
Something a little bit more
Than folks like me who are like
Well, we should put that on a t-shirt
You know, you might be able
To see deeper into it and I think
That it's interesting
That it's interesting
That you haven't had a chance
To experience
No, I haven't because you have to realize
That my
Brain is probably the most
Important organ that I have
In my body
It's sort of like the muscles
Of an athlete and I
You know, if you go to an athlete and say
Well, this will enhance the strength
Of your muscle, you don't take risks
Very often on those things
Because that's the most important
Thing for you and
But anyway
I'm sorry, but with psilocybin
If you look at the research right now
They're saying
It is the safest
It's the safest psychedelic
And if you look at the work
That's being done at Johns Hopkins
And the research
That's being done into it, I think you will find
That even though
I suppose there is some risk
It's
Highly improbable
That something would happen to you
That would in any way shape
Or form
Effect your ability to
Process information
In the way that you have trained yourself to
I don't know
Look, I'm just a podcaster
You're a Harvard, forgive me
Again, I feel embarrassed to even mention this to you
But
This is one of the things Terence McKinnon said
Is that we have these
I don't remember, somewhere in South America
There's one of these incredible telescopes
Gazing out the sky
To try to pick up data from some
Advanced civilization where right underneath
That telescope
Mushrooms are growing
If you take them
You will immediately have contact with
Something profound
By the way
You keep
Mentioning the fact that I'm a Harvard
Professor, but I grew up on a farm
And
That was plan B
If I didn't get tenure at Harvard
I would go back to collecting eggs every afternoon
And
Growing up
Vegetation
That's an incredible thing to me
That someone
You have a wild life
At the age of
24
You got a PhD
You were
Inducted or brought into some kind of
Elite group of
Physicists in the Israeli army
And
It's
When you think about yourself
How do you think
You ended up in this situation
When did you realize
I'm a genius
I'm basically a genius
Well, I haven't realized it yet
And my wife keeps
My feet on the ground
I watch the dishes
Every evening
And
I think
I just
I'm actually quite surprised
That I have ideas that other people
Other scientists did not have before me
Because they seem to me so
Straightforward and
Coming from common sense
And that's why my papers
Appeal to the public because
I tend to think the way that
Anyone thinks
I don't regard myself as
Particularly unusual
It's just that I was lucky enough
To succeed in
Getting the job that I have
And the most important thing
It's not the title, it's the fact that the job
Allows me to continue doing what I enjoy doing
I mean
I wouldn't enjoy
Being on a farm
But I enjoy more the creative
Work associated with science
And so the fact that I'm able
To get paid for what
I enjoy doing is unusual
Most people in order to make a living
They work on something they don't enjoy
And so
That is the thing I'm most grateful for
And I don't think of myself
As very different
From anyone else
It's just that it surprises me
When I look at
When I write a paper
That this was not done before
The fact that some of my ideas turn out
To be original is really surprising
It's mysterious
That other people do not think the same way
Why do people are afraid?
This has to do
As nothing to do with me
It has to do with them
But it also seems like
There's so much risk in your field
When it comes to
Outlandish ideas
Somehow I guess you've avoided
When I've talked to other scientists
Before and they feel like
There's the risk of
Being ostracized by your peers
That's right
I don't care about what other people think
About me
If I have a good idea
And it looks exciting
I don't care what their precautions may be
If someone will not give me a prize
Or will not admit me
To some society as a result
Who cares?
I really am driven by
The novelty of the ideas
And whether they describe reality
And trying to figure out what reality is like
It's not about showing off
It's not about celebrating
Status
Things like that
It's about trying to understand things better
That's the way I operate
I'm very straightforward in the way
That I
Speak with people
I never manipulate people
That's one of the reasons
I'm also department chair
For so many years now
I was asked to continue for another three years
So people
What they see is what they get with me
I'm not trying to fool anyone
Wow
It's a beauty
It seems like when you look back
At the beginning
Of science
Scientists were out of their minds
Like Newton
Was
Kind of obsessed with the occult
That's right
And didn't
I spoke to a high school
A few months ago
And I said that being a scientist
Is just like staying a kid
Throughout your entire life
You can allow yourself
Not to know everything
To ask questions, to make mistakes
And that's horrible as a scientist
Because we don't understand many things
Right
You maintain your childhood
Look at things
You inquire, you try to figure things out
Most of the adults
They operate differently
They think about their own image
The way they appear to others
They want to acquire prestige
To acquire money and so on
And that causes them
Not to admit mistakes
Not to admit that they don't understand something
As a scientist
We have this privilege
On a daily basis
Just focusing on the things we don't understand
Things that we can make mistakes
And we can try and figure things out
It's work in progress
It's a learning experience
I think that's interesting
To me, I was reading about how
One of the...
You have come up with some incredible ideas
One of them blew my mind
Which was
The idea that
In the earlier days of the universe
There was the potential
For space itself
To have enough warmth
In it that
Everywhere was kind of
Had the right temperature for life
Did I say that in the right way?
Yeah, so if you go far enough
Back in time
The universe was sufficiently warm
To have room temperature
Everywhere
Was room temperature
But only for 15 million years
It's just 15 million
But how did you...
Before we get into that
The origination of that idea in your mind
Because
In an interview that I read
It seems like this happened over...
You were at dinner or something?
No, I was actually...
Most of the ideas come to me in the bathroom
When I take a shower
Because that's when nobody interrupts
And so I took a shower that morning
And it happened...
Then I thought about this
And then I realized, oh, it's Thanksgiving day
I won't be able to work on this for the entire day
Because guests will be coming in the afternoon
And I told my wife
I really need the morning to work it out
You know, and
If she can give me that morning
Then I'll take care of the dishes
And arranging everything in the evening
And she gave me that time
And I sat down and wrote the paper
And within a day I finished
I mean, the same day I sort of
Wrote it up
And send it out
I should say that my wife
I now realize that I have a lot of good ideas
In the shower
Two days ago
She went to the supermarket
And brought me
These
Notebooks
That never get wet
That you can write on the showers
That's a great idea
Because otherwise there is a risk
That I'll forget the idea by the time I dry my seat
That is...
Oh God, one day I'll be such a genius
That I need waterproof notebooks in the shower
What a beautiful thing to have happen
Have you had a chance to
Go into a flotation tank yet?
No
I think this is something that you should consider exploring
Because
You know what these are, these float tanks
There's no light
That can get in
There's no gravity
It has a high high buoyancy
So you just float
In nothingness
As long as you want
And it seems like
This would be the ultimate version
Of a thinking cap for you
If the shower works for you
Yeah, it's just...
The farther I get from people
The better I am
In the sense that I have time to think for myself
About things
The shower is one of these escape routes for me
Because nobody would bother me then
Let me ask one last question
If you did happen
To
Come into contact
With some kind of alien intelligence
If you guys
Do pick something up
And you realize this is the real thing
What would be the process
In disseminating that information
To the rest of the world?
Well, this is an excellent question
And there is no formal
Process as of yet
And this is something to be thought about
Actually by astronomers
There needs to be some procedure
By which you notify someone
So maybe the White House
You notify
An international organization
But nothing like that exists
There is nothing right now
Because people think the chance of that happening
Is really small
Actually, we had
Steven Spielberg as a honorary
Degree recipient at Harvard
A year ago
And I told him about
We are searching for potential
Signals from ETs
And he said
I ask you please
The first signal that you get that looks real
Please call me first
Let me be the first to know about it
Wow! So obviously
Steven Spielberg after making his
E.T. movie is very
Eager to know
Can I be the second?
Sure, why not?
But it seems like
This is something like
U.F.ologists and people
The conspiracy theorists are
Concerned about this because they think that
Oh, but
Look at the leaks that come out these days
From the White House and everywhere else
It's really hard, it's very difficult
To keep such a secret
I don't believe
In any conspiracy of this sort
Especially among scientists
Who are not trained to keep a secret
What would the danger be
Of just once you get the signal
And discover
Whatever that discovery may be
Hopefully one that we make
That you will make in our lifetimes
What would the dangers be
Of just uploading it to the internet
And letting everyone know at once
That we've made contact
The only risk is
If these are hostile
If the civilization is hostile
If we transmit a signal
That tells them about our existence
That's the only risk
I don't see any other risk
So I think the information should be free to the public
That's my opinion
If it's just a matter of collecting information
Because you never know
There might be someone that will be able to decode
The signal in a way
That other people do not
It's actually a challenge similar to
Breaking a code sometimes
Because we don't know their language
And in principle
People that work for the intelligence
Could figure out
Much more easily using the software
They have trying to decode
Any signal like that
So I would be very much in favor
Of allowing the public
At large to look at it
And perhaps someone will figure out
What it means
Wow, doctor
This has been an enlightening conversation
I'm so grateful, thank you for giving me an hour
I'm on Memorial Day
If people want to find you
How can they find you? Do they have to enroll
In one of the most elite colleges on planet Earth
Or is there some other way to
Be taught by you
Yeah, so
Well, first of all, I have a website
They can just put my name
Avi Loeb on Google
L-O-E-B is the last name at Harvard
And they will see all kinds of things
That they do and research that they do
I will also visit New York City
On
And speak
To the public at the Alchemist's
Kitchen
On the 16th of
June, that's a Friday at around
7 p.m.
So anyone that is in New York City
Is welcome to go there
Beautiful, I have all the links
At dunkintrustle.com
Thank you so much
That was Avi Loeb everybody
And you can check him out if you're in New York City
At the Alchemist's Kitchen
On June 16th
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