SHATNER: Secret military programs,
warping space and time.
A mysterious device, with the power
to peer into history.
And places on our planet where the past,
present and future exist all at once.
For thousands of years, humanity has been captivated
by the idea that man might one day travel through time.
Some of the world's greatest scientists firmly believe
that this extraordinary feat is theoretically possible.
But what if time travel is not just a theory
but has already happened?
Is it really too far-fetched to think
that certain people have managed to journey
through the fabric of time, whether by design
or perhaps by accident?
Well, that is what we'll try and find out.
♪ ♪
Human beings experience time moment by moment.
We spend our lives following the steady,
one-way march of the clock
as we make our journey from birth to death.
But what if it's possible
to take a different path through time?
The great mystery of time is that time and space
exist independently of us,
but we view it in social and cultural terms.
For example, we divide our day up
into work time and leisure time.
And we have transportation systems
which have embedded timetables and time zones in our head.
And so the notion of time travel has always been popular
because the idea of escaping time,
of being able to step outside of time,
is hugely attractive.
SHATNER: The tantalizing prospect of traveling through time
has long captured the public's imagination,
making it a frequent subject in pop culture and entertainment.
Our modern fascination with time travel
can be traced back to the work of author H.G. Wells,
and his groundbreaking novel The Time Machine.
In 1895, the book The Time Machine
by H.G. Wells was published.
And the impact that this had on Victorian society
was incredibly deep,
because it gave the scientific world
the idea that we could indeed travel through time.
RONALD MALLET: What makes H.G. Wells' story, The Time Machine, unique
is that he had a mechanism, a machine,
that you actually constructed, it could control time.
That was different from all of the other stories.
SHATNER: Ten years after the publication of The Time Machine,
in 1905, physicist Albert Einstein shocked the world,
when he published a revolutionary theory,
which suggested that time travel is scientifically possible.
What Einstein said is that we all think of ourselves
as moving along a straight line of time
from the past, present to the future.
However, Einstein's special theory
can allow this straight line of time to become twisted
into a loop and cause time to be bent.
And so that allows us with the possibility of time travel.
SHATNER: Could the laws of physics really allow us to travel
to any point in the past or future?
And if so, is it possible that a real-life time machine
may have already been invented?
At the height of World War II,
the Atlantic Ocean was a dangerous battleground,
where German submarines frequently
targeted American ships.
To help protect Allied vessels,
the United States Navy reportedly initiated
a top secret program that became known
as the Philadelphia Experiment.
The Philadelphia Experiment is a series of
secret military projects
which took place in 1943
in a Philadelphia shipyard.
At that time, the Navy was really interested
in camouflaging its ships.
The original idea that the Navy had
was to actually make the ship radar invisible.
The Philadelphia Experiment involved a U.S. Navy destroyer
that underwent the most strangest of experiments,
with the concept being
that if the ship were surrounded by incredibly intense
electromagnetic fields,
could it distort our vision of it enough
that it became invisible?
SHATNER: As the story goes, on October 28, 1943,
government scientists wrapped a fully crewed ship
named the USS Eldridge
in a cage of electrified copper wire
and began the experiment.
But then, everything went terribly wrong.
SWARTZ: Supposedly, after the switch was thrown...
(whirring)
...all hell broke loose.
The ship was encased in fog.
-(screaming) -Everyone was running around the decks,
screaming in panic mode.
No one knew what was happening.
At that point, the USS Eldridge vanished in green mist,
only to reappear in the Norfolk, Virginia shipyard,
disappear again, then about three hours later,
reappear in Philadelphia.
This was witnessed by a merchant mariner called Carl M. Allen,
who claims that he saw it vanish in a green mist
before returning to the same spot.
And then, in Virginia, some people witnessed the ship
appear there and vanish there as well.
So, what is going on here?
SHATNER: Even more astonishing than the ship's vanishing act
is that when it returned to Philadelphia,
the crew appeared to have sustained devastating injuries.
-(screaming) -SWARTZ: When the ship was boarded,
it was found that the sailors were in horrible condition.
Many were dead
and others were found to be
embedded in the bulkhead of the ship, still alive.
COLLINS: Some of the crew seemed to be almost frozen in time
or stuck within parts of the ship
and unable to actually get out,
which seems to suggest the alleged teleportation,
involved with the Philadelphia Experiment,
that it had actually warped space-time itself.
SHATNER: According to reports that surfaced
years after the catastrophic experiment,
the USS Eldridge was not only transported
across hundreds of miles
but it also seems to have somehow traveled
decades into the future.
Allegedly, the ship was actually catapulted
through time and space,
a completely unexpected result,
appearing at various locations,
like Chicago in 1969,
and Lake Mead in 1983,
only to disappear and to continue
across the time stream uncontrolled.
The Eldridge just randomly skipped across time
achieving a rough form of time travel.
Some of the accounts of the Philadelphia Experiment
actually came from some of the families of the sailors
who had volunteered to be part of the initial experiments.
What had happened was that afterwards
these sailors had been declared dead-- missing in action.
So it was a disaster all the way around.
SHATNER: Did the U.S. Navy conduct an experiment
that unexpectedly resulted in time travel?
Some say the proof lies in a number of letters
written by the key eyewitness of the event,
merchant mariner, Carl M. Allen.
SWARTZ: Carl Allen had written a series of letters
to a author by the name of Morris Jessup.
Allen wrote to Jessup talking about
the Philadelphia Experiment, and Jessup included
the series of letters in a book
called The Case for the UFO.
Afterwards, Jessup was contacted by
the Navy, the Office of Naval Research,
because somebody had sent them a copy of Jessup's book.
And the Navy decided to cover it up completely
and said that it was all a hoax, that nothing had ever happened.
Jessup felt that this was a confirmation,
that the Philadelphia Experiment had actually happened.
COLLINS: Now, of course, we certainly have
no absolute knowledge about what the United States was up to
relating to time travel.
But the possibility should not be seen as science fiction.
SHATNER: If the USS Eldridge
really did travel through time in 1943,
then the U.S. military clearly wants to keep it
a closely guarded secret.
And some claim that the government further experimented
with time travel during the 1960s,
as part of a top secret project
that sent people back in time.
SHATNER: 27 million people from around the globe
flock to the city for the World's Fair.
The exposition showcases
a number of remarkable innovations,
and the fairgrounds are illuminated
with 100,000 light bulbs.
The sea of glowing lights transforms night into day
and astonishes the public, most of whom have never
witnessed anything like it before.
This dazzling spectacle was made possible
by a new form of electricity called alternating current,
which was one of the many important inventions
developed by famed Serbian scientist, Nikola Tesla.
This period around the end of the 19th century,
beginning of the 20th century,
was the zenith, really, of Tesla's career.
He became famous.
Tesla was the man who could see the future.
He was "Mr. Electricity."
Everything that Tesla did was directed towards
this kind of overriding goal of spectacular new inventions
for electrical transmission.
SHATNER: Nikola Tesla is widely considered to be
a scientific genius who changed the course of history.
But there are those who believe that Tesla should
also be credited with an even more extraordinary invention...
...a time machine.
In 1943, Nikola Tesla died
and left all his notes at the New Yorker Hotel.
When he died, the FBI raided Tesla's rooms,
took the notes,
and in the notes was a whole series of
speculative diagrams.
Allegedly, the United States had access to time travel technology
from a number of papers
taken away from Tesla's apartment,
which gave details on how to create
a teleportation device,
and with teleportation you could also have time travel.
SHATNER: Did the U.S. government really seize plans
for a teleportation device designed by Nikola Tesla?
And if so, is it possible they used this information
to build a working time machine?
Young Andrew Basiago is taken by his father
to visit a nearby manufacturing plant.
Little does Andrew know that this factory conceals
something truly extraordinary.
I was six years old in winter of 1968,
when my father took me to building 68
at Curtiss-Wright in Wood-Ridge, New Jersey,
and there on the floor of building 68
was a Tesla teleporter.
It was basically a large device.
It went all the way up to the ceiling
and had two booms that were roughly about eight feet high
and ten feet across on the floor.
They looked essentially like elephant tusks.
Between them was a form of energy
that was sort of cascading between the booms,
or armatures, of the device.
Jumping through that radiant energy caused
a holographic white tunnel of light
to open in time-space.
They were testing the effect of Tesla teleportation.
SHATNER: After witnessing the Tesla teleporter in action,
Andrew Basiago claims that he was recruited by members of
a shadowy military organization known as DARPA,
to participate in a secret time travel program
called Project Pegasus.
Project Pegasus was a classified defense-related
research and development program of DARPA.
They were essentially training and testing
American schoolchildren in eight modalities of time travel.
There were 140 American schoolchildren of my age
who were in the program.
We were also trainees because we were expected
to become America's first generation of chrononauts,
or time travelers.
SHATNER: According to Andrew Basiago,
the Tesla teleporter was used to send chrononauts back in time
to observe, and even influence, historical events.
A chrononaut essentially was a time travel agent
in the sense that I wasn't just involved
in testing and training.
I had missions when I went there.
I was sent to Ford's Theatre to see, for example,
who shot Lincoln,
and I was also sent to meet General George Washington
with the mission to urge him to immediately
retreat his troops from New York Harbor.
There was always sort of a very expert educational session
where they would sort of acclimate us,
so we'd understand what was gonna happen next.
SHATNER: While some may find Andrew Basiago's story
hard to believe,
during the Cold War, the United States government
conducted numerous bizarre experiments.
These programs involved everything from mind control
to remote viewing.
What this story really plugs into is
the widespread suspicion about the military-industrial complex.
The idea that the military are
conducting experiments behind our back,
and it's a widely held view that governments around the world,
particularly the United States,
have been researching time travel for a long time.
SHATNER: Andrew Basiago insists that his story is backed up
by more than rumor and innuendo.
He believes that there's photographic evidence
which shows that he traveled back in time
to observe President Abraham Lincoln
deliver the Gettysburg Address.
BASIAGO: I traveled to Gettysburg on the day Lincoln gave
his famous Gettysburg Address there,
which was November 19 of 1863.
My objective was essentially
watching President Lincoln give the address.
But I was getting so much attention by people
right up against the dais--
some ladies from Gettysburg,
several Union officers protecting Mr. Lincoln--
that I literally intentionally walked away from the dais
and there I was photographed
standing by Lincoln at Gettysburg.
Lincoln can be seen a tiny, small image of him,
a few pixels, over my right shoulder.
Now, it's called the Josephine Cobb image,
because that's the photo analyst at the Library of Congress,
Josephine Cobb, who took a magnifying glass
and found Lincoln in the photograph.
But the paradox of time travel is such that
that photo was discovered
ten years before I was born in 1961.
So when I left to go to the Gettysburg Address
of Abraham Lincoln, that photo of me in Gettysburg
in 1863 already existed.
So that's a proof of Pegasus, and there have been many.
Time travel technology,
the best I know because of my experiences,
is presently controlled by the United States government.
It's not a tall story or some kind of urban legend.
It's part of American history that's been forgotten.
So, what do you think?
Is the boy in that photograph a time traveler?
And if time travel technology really exists,
then how has the government kept it hidden for so long?
Perhaps clues can be found by examining
another secret time machine,
one that is said to be locked away
deep within the Vatican Archives.
SHATNER: Beneath the heart of the Catholic Church
lies one of the most secure vaults in the world,
the Archivum Apostolicum Vaticanum,
or as it's more commonly known:
the Vatican Secret Archives.
GENTILE: Underneath the Vatican is
a fortress that's climate controlled
with state-of-the-art security and technology.
In those archives are over 50 miles of shelves.
Within those archives are books, documents and artifacts.
But also rumored to be down there are
the most mysterious relics in history.
The Ark of the Covenant is alleged to be down there.
The original Menorah could be down in the archives.
The Spear of Destiny is rumored to be down there.
And these are just parts of the legend
that have kind of accumulated over the years.
SHATNER: Whether or not the Vatican Secret Archives
really contains lost treasures, like the Ark of the Covenant
or the Spear of Destiny, is a matter of debate.
But there is another item supposedly hidden
within the archives that some researchers believe
is just as extraordinary.
It's a time machine, developed in the 1950s,
known as the chronovisor.
GENTILE: The chronovisor is described as a machine.
You've got "chrono" which means "time,"
and you've got "visor" which means "vision."
So this is a device that allows you to see through time.
SWARTZ: The scientific principle behind the chronovisor,
is that this is a device that you could actually see,
sort of like with a hologram or a television screen,
past or even future events.
So, rather than risking a person's life
sending them into the past or the future,
you could turn this device on
and see what had actually happened.
SHATNER: Could there really be a time machine
hidden within the Vatican Secret Archives?
The story was exposed on May 2, 1972,
in an Italian newspaper called La Domenica del Corriere.
Journalist Vincenzo Maddaloni wrote about both the existence
of the chronovisor and the grand architect
of this astonishing machine.
The original idea for the chronovisor came from
a Benedictine monk by the name of Pellegrino Ernetti.
This was a gentleman who was a scholar of archaic music.
He was also a physicist.
Ernetti developed the chronovisor
sort of on accident.
According to Father Ernetti, he had been working
for the president of the Pontifical Academy
of Sciences, Father Agostino Gemelli.
They were working on a project
to go through, restore and archive old audio recordings,
-um, mostly of Gregorian chants. -(Gregorian chants playing)
So, one day he's going through recordings of the chants,
and Father Gemelli swears he can hear a voice
on the recording, so they isolate the voice.
-(chanting) -(man speaking Italian)
GENTILE: And Father Gemelli could swear that it's his father's voice,
but his father had been dead at the time of this recording.
Now, Father Gemelli thinks it's a miracle.
The voice under the chant from beyond, it's a gift from God.
Father Ernetti's more scientific, he's more grounded.
He wants to see if maybe there's a way to extract
old information out of electromagnetic recordings.
-(whispering voices) -Father Ernetti gets 12 physicists and scientists
together to help him work on this project to see
if they can replicate this phenomenon,
and they built the device.
SHATNER: Rumors about the Vatican's secret time vision technology
were a strange curiosity in Italian newspapers for decades.
But then in the year 2000,
the story was exposed to the wider world
in an explosive book titled Father Ernetti's Chronovisor.
The book included firsthand accounts
from Father Ernetti in which he revealed
how the device worked.
Father Ernetti said that the chronovisor consists of
metal of different alloys.
Some rare metals, some expensive, some exotic.
And these metals are designed to tune into different frequencies
that pick up this residual electromagnetic energy,
that sense conversations and can see images anywhere in time.
SWARTZ: The theory was that energy never completely disappears,
that the past-- the frequencies
are still floating around out there somewhere.
And with the proper tuning, you could actually pull in
the sights and sounds of past events.
SHATNER: After building the chronovisor, Father Ernetti claimed
he first tested its abilities by watching speeches
delivered by Italian dictator Benito Mussolini
just a decade earlier in the 1940s.
When that test was successful,
Ernetti reportedly scanned back to 1797...
-(gunfire) -...to watch Napoleon conquer Italy
during the French Revolution.
And despite intense scrutiny,
Father Ernetti never changed his story.
Father Ernetti passed away in 1994.
And to his dying day, he said the chronovisor exists.
Over the years, the Vatican has been questioned
about the chronovisor, and their standard answer is:
it's fantasy, it doesn't exist.
But in 1988, allegedly, there was a decree given
by the Church, which was very, very strange.
And it said something to the effect of
anyone using technology to listen to or peer through time
would be excommunicated.
SHATNER: Why would the Vatican make this declaration
if the chronovisor doesn't exist?
And if the Vatican possesses
such an incredible piece of technology,
then why are they hiding it in the Secret Archives?
If you could turn on a device and look any place,
any time in the past,
history would unfold before us.
All mysteries would be revealed.
However, such a device would also eliminate all secrets.
Would our society be mature enough to accept
the loss of our secrets?
I don't think so.
If the claims about the chronovisor are true,
then maybe it's best to keep it locked away.
But with reports of numerous time machines circulating,
perhaps the more important question is,
what's the science behind them?
The answer may lie
in the story of a renowned Italian physicist,
who made a major discovery related to time travel
in 1937, and then mysteriously...
vanished without a trace.
SHATNER: Scientists at the CERN Large Hadron Collider
announce a remarkable discovery.
After firing subatomic particles
through the 17-mile length of the collider,
they observed that certain particles, known as neutrinos,
moved faster than had ever been measured before.
At the microscopic level,
neutrinos, very exotic particles,
were clocked traveling faster than the speed of light.
Now, if you could go faster than the speed of light,
time travel may be possible.
But is it possible in principle,
to have these things happen for large objects like us?
And the answer is, theoretically, yes.
SHATNER: Could studying high-speed neutrinos
be the key to understanding how humans can move
faster than the speed of light,
and potentially even travel through time?
Well, some say that the answer may lie with
the peculiar disappearance of a scientist in the 1930s
named Ettore Majorana.
Who came up with this theory of neutrinos
that are being studied?
It was Ettore Majorana.
In 1937, this genius, he wrote the first paper
on neutrinos, which we're now studying decades later.
So because of Majorana, we have a much richer
understanding of subatomic particles.
McMAHON: Ettore Majorana was living and working in Italy
under the dictatorship of Benito Mussolini
in the lead-up to the Second World War.
His work on neutrinos was completely groundbreaking,
and then he just vanishes.
The fate of Ettore Majorana is a complete mystery to this day.
He was, uh, on the island of Sicily.
And this was in 1938.
He had a ticket of a boat trip to Naples,
which it would seem as if he actually got on this boat,
and then he just disappears completely.
McMAHON: Many believed that suicide was a rational explanation,
but there was no proof.
It seems inexplicable that a man like Majorana,
very much at the top of his game,
recognized as one of the world's top physicists,
why would he suddenly choose to end his own life?
Others believe that he went to a monastery,
that he secluded himself away,
because he'd also withdrawn a huge amount of money
from the bank.
But more intriguingly is the notion that,
some people believe, that the discovery of neutrinos
by Majorana also permitted him
to entertain the notion of time travel.
SHATNER: Is it possible that Ettore Majorana didn't
merely disappear but actually used his knowledge of neutrinos
to travel through time?
Majorana left behind a letter that may offer a clue.
Before his disappearance,
Majorana wrote a series of letters.
And there's one particularly intriguing letter
where he says that he will keep
a fond memory of his colleagues
"until 11:00 p.m. tonight,"
and possibly later.
And the tone and, more importantly, the tense
in which he was writing those letters
seemed to be very vague in terms of time.
SHATNER: While skeptics have questioned
whether Ettore Majorana's disappearance
involved time travel, in the 1950s,
surprising evidence emerged
which suggests that it could be true.
COLLINS: In 1955, somebody actually meets a man
in Buenos Aires in Argentina,
that claims to be, um, Ettore.
So, with this, what are we to conclude?
DONNELLY: After Majorana's disappearance
there were frequent Majorana sightings.
People coming forward to say, "Oh, I think I saw somebody
who looks a little bit like him."
And then a photo surfaced from 1955
taken in Valencia, in Venezuela.
In this photo, there is a man who is most likely Majorana.
SHATNER: Further analysis of the photograph
revealed a bizarre twist.
Majorana was 32 years old when he disappeared.
In 1955, he would've been 49,
but the man in the photograph looks closer to 70.
So, where and when was Majorana all that time?
Now, if that photo was of Majorana,
it suggests not only that he survived the ferry trip
between Naples and Palermo
but that he engaged in some kind of travel.
Travel across space but also possibly travel through time.
Did the man who unlocked the secrets of the atom
also discover the key to time travel?
It's unclear, but some researchers believe
that you don't need to be a brilliant scientist
to travel through time.
Instead, they argue that there are certain locations
on our planet in which strange energy
can transform an ordinary person into a time traveler
by sheer accident.
SHATNER: This historic port city is famously known
as the hometown of The Beatles.
But over the years, it has gained
a much stranger reputation.
It's said that in Liverpool
time moves in mysterious ways.
And it's become ground zero for a phenomenon
known as "time slips,"
which are a kind of accidental time travel.
McMAHON: In Liverpool, there's a shopping street called
Bold Street, which has become infamous for time slips.
One of these time slips involved a police officer
called Frank, who was out shopping
with his wife Carol, in July 1996.
And Carol went to the Dillons bookstore,
and he went to a shop to buy a CD--
a compact disc-- 1990s technology.
Now, he then returned to meet up with his wife,
but the bookstore where his wife was,
Dillons, had now become Cripps
and was selling women's clothing and handbags.
Now, this confused Frank, who then looked around and found
that everybody around him was dressed inexplicably
in 1940s, 1950s fashion,
and he became rapidly aware
that he was no longer in the 1990s.
He was somewhere very, very different.
COLLINS: And everything then just changes back to how it should be.
The bookshop is there,
which he knows to be Dillons,
but he remembered the name of that shop and it was Cripps.
And there was, indeed, a shop in the 1950s
at that location by the name of Cripps.
Is it possible that there are places in this world
where space-time works differently to anywhere else?
SHATNER: While Liverpool has become known for time slips,
this unique phenomenon has been experienced
and reported all over the world.
Recently, time slips have been entering the news.
The fact that here you are at one point in space,
and then suddenly time has a mistake in it
which allows you to slip right through a crack
in the fabric of space and time.
DONNELLY: There is a big difference between a time slip
and the use of a time machine.
In a time machine, you have control
over your comings and goings along the timeline.
With a time slip, one ends up in the future,
or possibly the past, without any idea
of how you got there or any control of being there.
SHATNER: Curiously, time slips have also been reported
on the sites of historic battlegrounds.
Another very interesting account of a time slip
occurs in 1932.
When two journalists went to the Hamburg shipyard
to cover a story--
a gentleman by the name of J. Bernard Hutton
and another gentleman by the name of Brandt--
nothing out of the ordinary took place,
until suddenly they found themselves in the midst
of bombs being dropped all around them.
They could see, actually, bombs falling out of the sky.
And obviously this was something that terrified them,
and they got out of there quickly.
McMAHON: When they looked back from Hamburg to the shipyards,
they appear to be intact and unharmed.
And when Brandt's photographs were developed,
again, there was no damage to the shipyards.
Fast-forward to 1943,
and Hutton was living in Britain during the Second World War.
He read a report of an RAF raid on that shipyard,
a bombing raid by the Royal Air Force,
and the description in the newspaper matched exactly
what he'd seen on that day in 1932
and chilled him to the bone.
SHATNER: If there is some truth to these time slip reports,
then what could be causing them?
Well, according to physicists, the answer could be
that we're living in what's referred to
as the multiverse.
The idea of the multiverse comes from the quantum theory.
You know, when we were children, we were told that
you cannot be two places at the same time.
That's just common sense, right? Well, we lied to you.
In the quantum theory, electrons can, in fact,
be two places at the same time.
Therefore, we have this scenario where the past,
the present, the future are all mixed up into one.
So in principle, the theory allows you
to simultaneously exist with somebody from the past.
COLLINS: What are we to make of people coming forward
and claiming these time slips,
whether they be into the past or into the future?
And I think what we can say is that there are so many
of these stories that there must be some kind of truth to them.
SHATNER: But if numerous people have been transported to another time,
then where is the proof?
The answer may lie in examining old photographs
that curiously appear to show people
from the future.
SHATNER: The Virtual Museum of Canada releases a collection
of historic images on its website.
One particular photo, taken in 1941,
sparks intense curiosity,
because it appears to show a man
from the future.
In this image from 1941, here we have a group of people
at the opening of the South Fork Bridge
in British Columbia that year.
And this young man just shouldn't be there.
Now, they all look like typical 1940s people,
except for this chap here with the dark shades.
He looks like a kind of hipster from our time.
He's got his great, cool sunglasses.
He's got what seems to be a modern T-shirt on
and this little box camera.
There is no reason for him to be standing there in 1941.
SHATNER: The bizarre photo quickly went viral on the Internet,
and many have wondered whether the strangely dressed man
could possibly be a time traveler.
But according to some researchers, the best evidence
of modern people traveling back in time
is not a picture but rather a mysterious artifact.
An archaeological report came out in 2008
regarding a very, very strange discovery
in a Ming dynasty tomb in Shanxi, China.
Now, this tomb is at least 400 years old,
and it was fully sealed, hermetically sealed,
so no one had been in it for 400 years.
But when they cracked open this bit of rock
that had hardened over time, this ring came out.
Just a few centimeters wide.
And on it, it looked exactly like a watch.
It even had the hands of the watch
and the 12 hours around the edge,
which caused a sensation because this couldn't have existed.
There was no watches at this time.
So how could this be?
How could this anomalous ring end up in a Ming dynasty tomb?
SHATNER: While skeptics dismiss the unusual artifact
as a mere hoax,
others are thrilled by the idea that time travelers
may be leaving tangible evidence of their journeys to the past.
And yet, experts warn that even though time travel is
a fun and fascinating concept,
it's also cause for grave concern.
MALLET: We have to realize that if we can travel back into the past,
the worst-case scenario is that governments could use it
to attack their enemy by going to the past.
Imagine, for example, going back to
to the Revolutionary War
and making sure that you eliminated George Washington.
These are problems that could happen.
This sort of technology would be a very powerful thing to have.
For over 100 years, we have been debating
whether or not time travel, especially to the past,
is beneficial or dangerous.
But, of course, the dilemma for us is, there's a conundrum here.
Because if there are people time traveling and altering the past,
they will know what they've done,
but we won't know because we're living here,
and we haven't traveled back.
We're prisoners of time.
And, of course, that's very unnerving.
The stories of supposed real-life time travel
are tantalizing, provocative,
and in some cases dangerous.
They all teeter on the edge of science fiction
and science fact.
Will we one day uncover indisputable evidence
which proves that these incredible tales
are actually true?
It seems that only time will tell.
But until then, these mysteries will remain...
...unexplained.
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