All language subtitles for AB6406B05C32807E63FF45A0EC88ABA7_eng

We all feel the weight of
the shadows on our future.

But in another time, every
bit as ominous as our own,

there were those who could
see a way through the darkness

to find a star to steer by.

Carl Sagan wrote,

"I was a child in
a time of hope...

I wanted to be a scientist
from my earliest school days.

The crystallizing moment
came when I first caught on that

the stars are mighty suns...

When it first dawned on me
how staggeringly far away they

must be to appear as mere
points of light in the sky...

I'm not sure I even knew the
meaning of the word "science" then,

but I wanted somehow to
immerse myself in all that grandeur...

I was gripped by the
splendor of the universe...

Transfixed by the prospect
of understanding how things

really work, of helping to
uncover deep mysteries...

Of exploring new worlds...

Maybe even literally.

It has been my good fortune
to have had that dream,

in part, fulfilled...

For me, the romance of
science remains as appealing and

new as it was on that day...

When I was shown the wonders
of the 1939 New York World's Fair.

This is where the
future became a place."

But, how could there
be hope in 1939?

The angriest voices had
taken the world stage,

preaching hatred
and tribal division.

The most cataclysmic
war in history,

which would take the lives
of 60 million human beings,

was only just beginning.

Yet, even as darkness descended,

it was possible to awaken
the young Carl Sagan and his

contemporaries with a
thrilling vision of the future.

One that was powerful
enough to inspire many of them

to do the years of
hard work required to

become scientists and engineers.

The "miracle" of television
became a reality to the public

at the 1939 World's Fair.

We had learned to manipulate
electrons into what would become a

civilization-altering force.

This working model of a TV
set was transparent to convince

the skeptics that what they
were seeing was not just

motion picture images.

The images on the television
screen were actually live

signals from across
time and space.

A possible world of
revolutionary high technology

was first glimpsed here.

Carl Sagan was the first to
explore space and time on the

Ship of the Imagination.

But we have something
else in common.

We both had life-changing
experiences in this same place

in Flushing Meadow, New York.

When I was about
the same age as Carl,

my family took me to
the 1964 World's Fair.

I'm the little guy on the left.

It was 25 years later and our world
faced a different set of problems.

The superpowers had rigged
the planet with some tens of

thousands of nuclear weapons.

They were on short fuses
that could be lit at any moment.

Preparing for the coming
apocalypse was a frequent

ritual for
schoolchildren like me.

While we all knew that our
lives could be terminated at

any moment, the 1964 World's
Fair presented a vision of a

boundless future,
one freed of danger,

where science and technology
had been refocused on human

hopes and dreams...

I have stunning, indelible
memories of that visit.

My father was a key
administrator for New York City

during the civil
rights movement,

and they named a monorail
car after him for the day...

We proudly rode the
Tyson Comet into the fair.

I remember the life-like,
animatronic dinosaurs and

being amazed that we
could know about things that

happened so long ago.

I remember the sense that Earth
was just a place we happened to be.

Even the fair's main
symbol, the Unisphere,

was a vision of Earth in the
larger context of the cosmos.

Remember, this was before
anyone had ever seen the whole

Earth from deep space...

It was a time when
everything soared.

Even the buildings
seemed ready for take-off.

You could go on a
trip to a brighter future,

an Earth where
there were no slums,

and no hunger...

Some of those promises
remain unfulfilled,

and others have been exceeded beyond
even the wildest dreams of that time...

Do me a favor.

Try to forget everything you
take for granted at this moment.

Imagine you've never
seen a laptop, or tablet,

or smart phone,

that you've never
searched for anything online,

or ever received an email or
a text message from anyone.

This was a world where if you
wanted to know something about

the history of life, or
the lyrics to a song,

you had to go to
the nearest library.

Like many people at that time,

it was here that I had
my very first interaction

with a computer.

The machine on my right is the
IBM Optical Character Reader.

It's a machine which
reads handwritten numbers.

To illustrate its
operation to you,

you will be able to ask for the
news of any date that you'd like.

You simply write a date on a
card and then the IBM Optical

Character Reader reads
your handwritten numbers.

The computer replies
with the news event.

Imagine my amazement that a
machine could read the date of my birth,

and spit out the most important
events that took place on that very day.

How could a machine
possibly know that?

Even in this optimistic
dream of the future,

the long shadow cast
on it was inescapable...

The very same vehicles that
promised to take us to other

worlds also threatened
to destroy this one.

They could carry explorers,
or they could carry weapons of

mass destruction.

This Project Mercury
spacecraft had recently taken

Scott Carpenter
into Earth orbit...

There was a two-man Gemini
spacecraft that wouldn't be

operational for another year...

And the most ambitious of all:
The Apollo command module and

lunar lander were close enough
for me to reach out and touch.

The first actual manned trip to
the Moon was still four years away.

Think of the
audacity of that time:

We were going to send
humans to the Moon

and bring them back safely,

and do it all with computers
whose best trick was to tell

you what happened on
the day you were born...

All these decades later,

I can't believe we
really did those things.

But like Carl,

the hope I discovered at the
World's Fair has never left me.

The odds were against us,

but we're still here
more than 50 years later.

And still dreaming of what
the future might hold for us...

Come with me to the New
York World's Fair of 2039.

It's the year 2029 and
there's a girl somewhere,

imaging how the
future might unfold.

Dreams are maps...

Without them, we go nowhere...

This new colossus, one
of many erected in each of

the Earth's greatest harbors,
is made of calcium carbonate,

the same material that
nature used to build life's first

home in that ancient
lost city beneath the sea.

Carbon dioxide, the main
driver of climate change,

has been extracted from our
atmosphere and converted into

the mineral used to construct
this monumental Tree of Life.

These new wonders of the
world not only signify that our

species has found a way to
avert the worst consequences

of climate change, but they
also declare our ambition for

the kind of greatness
that lives in harmony

with our fellow earthlings.

Welcome to the 2039
New York World's Fair.

Come with me.

Hi.

Yes, it's right that way.

Here, in the Pavilion
of the Searchers,

the greatest heroes in the
history of science come to

virtual life to
recount, one-on-one,

how they deciphered
nature's secrets.

They tirelessly answer every
conceivable question you might have.

And here, there is no such
thing as a dumb question,

no shame in asking anything
you really want to know.

And these aren't just
robots whose heads are filled

with recorded messages.

We have found a way to
reproduce the neural networks

in their brains, their ideas,
memories and associations,

their connectome.

Imagine a world where
the still unfolding story of the

universe was told to every
child as naturally as we tell

them our nursery
rhymes and fairy tales.

Oh, can they take us now?

Two questions: Did it
blow your mind when we

discovered gravitational waves,

even though you
said we never would?

Ja.

Second question.

Your hidden variables,
solution to the paradox of

quantum mechanics, now
that we know they don't exist,

what does that say
about the nature of reality?

Come with me.

And this is the Pavilion
of the 4th Dimension, time.

It's a place where anyone can set
their coordinates in space and time,

and visit any moment in the 14
billion year history of cosmic evolution.

Isn't it amazing that we
only started doing science

systematically
four centuries ago?

And yet we've already been
able to reconstruct so much of

what happened billions of
years before we even got here.

This Cosmic Calendar,

with all of time compressed
into a single Earth year,

is yours to explore.

What event in the history
of the universe would

you most like to witness?

Not the Big Bang,

everybody wants to
see that, and besides,

you have to be over 14.

But, we could go to that
nanosecond before time began...

Or that last perfect
day of the dinosaurs.

Or to spend the afternoon
with the mitochondrial Eve,

the mother of us all, the
woman to whom all humans can

trace their lineage?

Or what about a day trip to
Giza to see the pyramids when

they were new?

Just take your pick...

Life, the escape artist,

having found every
niche on Earth,

even ventured to the Moon...

When we first stood
amidst its sterile desolation,

its lifeless dust, a world
painted only in shades of gray,

we began to appreciate
how radically our planet

changed when it was
touched by life's genius.

The eagle has landed.

What form will life's
genius take hundreds of

millions of years in the future?

Behold: This is the
earliest known ancestor we

humans share with almost
every animal who lives now

or ever lived on Earth.

The real Saccorrhytus
coronarius was actually quite small,

just a black dot to our eyes,

but it looms large
in our personal story.

"Sacco" flourished more
than half a billion years ago.

It's a progenitor of
the animal kingdom.

So how did life, the
sculptor, carve us out of this?

Evolution, given
world enough and time,

makes possible the emergence
of those more complex and

completely unexpected
qualities that can arise from

simpler things.

Life is a thread four
billion years long.

It has survived at least five
mass extinction events and

come back from each of
them stronger than ever before.

Life demonstrates that we are
more than the sum of our parts,

and even when we find
ourselves with our backs to the wall,

life can find a way
into the future...

Landmine.

A souvenir of our savagery left
over from conflicts all over the planet.

We've infested our world with
more than 100 million of them.

Every year they kill or
maim thousands of civilians,

among them children
at play with their friends.

Think of a global effort that
would be required to find and

defuse more than 100
million explosive devices

buried in the earth.

Hopeless, right?

But botanists have devised
an ingenious way to reveal

the presence of dangerous
explosives beneath our feet.

They have bioengineered the
thale cress plant whose roots

can detect the nitrogen
dioxide gas that these

landmines and IEDs emit.

If the plant puts out
red leaves, beware.

But if its leaves are green,
then you can play there in

peace with your friends.

We can use our understanding
of nature to spring the traps

that we've set for ourselves.

Let's take the
subway to New Jersey.

We're riding the mycelium,
that underground network that

connects 90% of the
world's trees and plants.

It's an ancient coproduction
of four kingdoms of life,

plants, bacteria,
fungi and animals.

New Jersey was once a
state with the highest number of

dangerously polluted
areas in the country,

shameful artifacts of our
technological adolescence.

But then, we partnered
with the trees and the plants...

Poplars naturally
transform trichloroethylenes,

known as TCEs, carcinogenic
solvents that are common

by-products of industry,
into harmless chloride ions.

Simple salts.

Microbiologists discovered
that they could crossbreed two

different species of poplar
trees to enhance their power

to neutralize TCEs.

The extensive planting of
these trees not only rid this

area of its poisonous threats
to human and other life,

but also added to the number
of trees that turn the most

prevalent greenhouse gas,
carbon dioxide, into oxygen.

With our wars and our lifestyle,

we dumped a lot
garbage on this world.

Not just landmines and IEDs,

but the toxins
from our fossil fuels,

the waste from our
consumer civilization,

nuclear power
plants and weapons.

And the electronic toys that
we discarded at an alarming

rate laden with lethal
heavy metals, lead,

cadmium, beryllium
and other e-wastes.

I have moments of
despair when I try to wrap

my mind around the
enormity of the problem...

But life even provides a
way out of this nightmare.

It's called bioremediation...

See that node at
the intersection?

That's yeast.

Without it, no bread, no beer.

But in this future, we
have used it to clean up

the whole world.

It was a means to
neutralize the most dangerous

garbage we produced.

Yeast captures these
poisons and prevents them from

contaminating the water supply
and the rest of the environment.

Think of it.

Nature offered us
a second chance,

a shot at undoing
the damage done...

But how do we keep
from doing it again?

What on Earth is designed by
humans to protect the distant future?

We don't have a single
institution that even

acknowledges the long-term
danger we pose to ourselves,

let alone one
designed to plan for it.

Our time horizon looms
three months from now,

or four years, the
corporate balance sheet,

the next election.

But science is telling us that
life's time scale measures in

the billions of years.

How do we maintain
awareness of the continuity

of life's past,

and our personal role in
being a link to its future,

so that it has operational
consequences?

Science, as of now, has no means
of making us wise and far-sighted.

That's up to us.

How many have lost the
battle that we fight now?

How many worlds lie buried
beneath the surface of this one?

Maybe we'll never know.

But here at this fair, there's
a pavilion where long-dead

civilizations come
roaring back to life...

I know of one lost
world that flourished for

thousands of years.

Their accomplishments were many.

They left behind a written
language that no one has ever

been able to decipher.

We have yet to discover
a clue that could explain

why they vanished.

They are just one of
the mysteries of the

Pavilion of Lost Worlds...

In 5th century B.C.E. Greece,

Herodotus, the
father of history,

wrote of the opulent lifestyle of the
Tartessians on the Iberian Peninsula.

Their wealth came from the silver
and gold they extracted from the earth.

They had their own
language, culture, dances,

music, and yet very
little survives of them

besides a handful of
trinkets of marvelous design.

Theirs is one of the lost
worlds of planet Earth...

As are the nameless people,
who lived in what is now

Nigeria, in a
place called "Nok."

For 1,500 years, their
engineers were on the cutting

edge of technology, forging
new ways to work with iron.

Just as with the Tartessians,

they had their own
unique civilization.

All that remains of them
are some ceramic statues in a

style unlike any other and
an inscription on this wall.

Everything else about them
has been devoured by time...

But inside this pavilion,
these lost civilizations live,

they breathe,
they dance again...

Of them all, which one to
bring back to life tonight?

I know...

the Indus Valley civilization

at its high point
in 2,500 B.C.E.,

when it was a vast network of
cities with a population of five million.

Come with me to
their most famous city,

Mohenjo Daro...

We don't know how this pool
called the "great bath" was used,

but we do know that this
city was planned and laid out,

while the Greeks
wandered in small tribes,

just a band of
itinerant merchants...

Wait...

Do you hear that?

Listen...

Yes, the Indus Valley people
of nearly 5,000 years ago

installed modern
plumbing in their homes!

Something most people didn't
have until the late 20th century.

And, they mastered other
forms of hydro-engineering,

underground pipes,
sewage management,

kitchens with running water.

They had dentistry, and
standardized measures for the

tiniest quantities.

They were great sculptors
who introduced natural reality

into the three dimensional
depiction of the human form.

They had writing, and
hung signs on buildings,

but we have yet to
understand their meaning.

They used dice to play games
of chance and wiled away their

evenings with board games.

And there's something
curious about them.

They left no depictions
of war in their art,

nor large caches of weapons.

There's no evidence that
their meticulously planned cities

were ever burned to the
ground by enemy invaders.

In the study of their
contemporaries,

and human history
generally, this is most unusual.

This figurine is one of the only
surviving remnants of their civilization.

And yet, they were
as real as we are.

Their moment as real as ours...

Just beyond the
Pavilion of Lost Worlds,

there's another one...

The pavilion of
worlds still to come...

We've launched
five ships to the stars.

They are backward and
primitive craft, moving,

compared to the immense
interstellar distances,

with the slowness
of a race in a dream.

But in the future
we will do better.

We've located and begun to
study thousands of worlds that

orbit other suns, all this from
our remote confinement in

the suburbs of the galaxy,
all this in just 400 years since

Galileo's first look
through a telescope.

The Milky Way has
hundreds of billions of stars,

and likely even more worlds.

Somewhere in the vastness,

there may be an
Encyclopedia Galactica,

a reference work that includes
all the worlds of all the stars.

Our vague perceptions and
inferences of thousands of

exoplanets have given way
to a more intimate degree of

knowledge of some
half a million worlds.

Imagine a huge
galactic database,

a Library of Alexandria
for the whole universe...

a means for our small world to attain
some measure of cosmic citizenship...

Imagine an
Encyclopedia Galactica

that is constantly
evolving and growing,

an open source
where the knowledge of

the worlds of the universe
would be available to all.

These guys, who call
themselves "We Who Survived,"

are only a little more
advanced than we are.

If we could only
communicate with them,

maybe they could tell us how they
got through their stormy adolescence.

And these guys, too...

"We Who Flower in Darkness."

What about a civilization
far more advanced than ours?

There may be worlds with
engineering on a scale that

dwarfs our proudest
achievements.

There may be cultures that
disassemble other planets in

their system and reassemble
them around their world to

make a ring, buying them
more room and more resources.

Well, their future looks bright.

But the poor beings of these
worlds have only a 1 in 3 chance

of making it through.

What is that?

Could this be their attempt to solve
a solar system-wide energy crisis?

They depend on solar power,

but their star is only
a feeble red dwarf,

incapable of
providing direct energy

for their multi-planetary
civilization.

Maybe, they've
used up all their fuel.

So, they're building a
shell to surround their star

and harvest every
photon of sunlight.

How would we frame
our own entry in the

Cosmic Encyclopedia
of Possible Worlds?

Perhaps, even now,
someone has written it for us,

a planetary dossier garnered
from our television broadcasts

or from some discreet
survey mission.

They might summon up the
index of blue worlds in our province

of the Milky Way, until they
came to the listing for Earth.

What would they think of us?

We have long watched the stars
and mused about whether there

are other beings who
think and wonder about us.

In a cosmic setting vast and
old beyond ordinary human

understanding,
we're a little lonely.

50%, huh? That's all?

I know a way we
can up those odds...

It's about taking what
science is telling us to heart.

This is the dream of Cosmos.

And this is the story
that science is telling us...

Our universe began,
some 14 billion years ago,

when matter, energy,
time and space burst forth...

And the darkness was cold,
and the light was hot and the

union of these extremes
gave shape to matter and

there was structure...

There were great stars,
hundreds of times the mass of

our Sun and these
stars exploded,

sending oxygen and carbon
to the worlds to come and

adorning them with
gold and silver...

And in their deaths, the stars
became darkness and the weight

of their darkness
vanquished the light...

And new stars were born from
their death shrouds and they

began to dance with each other.

And now there were galaxies...

Galaxies make stars...

Stars make worlds...

And a world made life...

And there came a time when
heat shot out from the molten

heart of this world, and it
warmed the waters and the

matter that had rained
down from the stars came

alive and that star
stuff became aware...

And that life was
sculpted by the Earth,

and its struggles with
the other living things...

And a great tree grew up,
one with many branches,

and six times it
was almost felled...

But still, it grows and we
are but one small branch...

One that cannot
live without its tree.

And slowly, we learned
to read the book of nature...

To learn her laws...
To nurture the tree...

To become a way for
the cosmos to know itself

and to return to the stars.