Time is the one thing everyone wants more of, and NASA says the dream of steering through it is theoretically possible. Getting there means bending the universe into a circle, and then the real trouble starts. Along the way come a Soviet-era photographer who stepped onto a Kiev street 48 years late, a stock trader who claimed to hail from 2256, and one of the greatest physicists who ever lived, left with a room full of champagne and no guests.
Bending spacetime into a circle
Einstein's theory of relativity holds that time and motion are relative to each other, and that nothing travels faster than light, which covers 186,000 miles per second. The trick is to stop treating space and time as two things and think of them as one thing, spacetime. Then curve it until it closes into a circle, and build a machine. Scientists call the math pretty simple, which presumably means simple for physicists. Making it physical is another matter. Science fiction loves a wormhole, a tunnel through spacetime, but nobody knows how to make one or travel through one, or even whether they exist. That isn't fatal. Black holes were once 100% theoretical too, until astronomers turned up promising evidence in 1964. By 1971 the Milky Way had its first confirmed one. NASA now suspects the galaxy could hold as many as a billion, including a neighbor called the Unicorn, just 1,500 light years away.
Then comes the problem science fiction always skips: location. Earth races around the sun at 68,350 miles per hour, covering about 1.6 million miles a day. It also spins on its axis at about 1,037 miles per hour at the equator, and far slower at the poles. That extra equatorial zip is why Kennedy Space Center sits in Florida instead of Billings, Montana. Get the coordinates wrong on a trip back to see the dinosaurs, and a time traveler ends up embedded in a mountain or a mile underwater.
Dispatches from 3036, via TikTok
Finding a self-proclaimed time traveler takes no security clearance, only TikTok. One visitor from 2122 posed in front of the closet she uses to travel, announced that life will not get easier, and asked that no one question her about it. A man from 3036 sounds like everyone's cranky dad, calling these "the last days of freedom." Others get more specific: an extremely aggressive new species in the mountains of Mexico that would count as a dragon, ten people gaining mysterious powers from a blast of solar energy, a meteor destroying most of Amsterdam, a famous celebrity coming back from the dead to explain how he faked it, and a 3-foot spider alongside an 18-foot bear.
On YouTube, the documentary Confessions of a Time Traveler follows a man caught shoplifting who explained that where he came from, food and clothing are free. In his future, the air is so bad that nobody goes outside without a mask, cats and dogs count as exotic zoo animals, pods replace houses, radiation has left everyone bald, and our own time is remembered as "the idiot era." That last part is hard to argue with.
The man who walked out of 1958
In 2006, a disoriented young man in dated clothes stopped a uniformed police officer in Kiev, Ukraine, and asked for help. His name was Sergei Ponomarenko, and his Soviet identification papers from the 1950s put his birth in 1932, which would have made him 74. He claimed to be 25 and looked it, and his 1950s passport showed the same young face. He said he'd been wandering Kiev with his camera on an afternoon in 1958 and suddenly found himself 48 years in the future. The camera was a model not manufactured since the 1970s, and police had to find an antique-camera specialist just to process the film. It held pictures of 1950s Kiev, photos of Sergei with a woman in old-fashioned clothes and something that looked very much like a UFO. That, Sergei said, was the last thing he remembered seeing.
A search turned up a report on a Sergei Ponomarenko who went missing in 1958. The report named a girlfriend, and police found her alive and in her 70s. She was the woman in the photographs. She said Sergei vanished in 1958 for two years, came back, then disappeared again in the 1970s. Since then she had received an odd picture of a much older Sergei, supposedly taken in 2050 in a much larger Kiev. Online, the tale grew to include security video of Sergei walking into the police station and never walking out.
Then a YouTuber named Joe Scott took it apart. The skyscrapers in the 2050 photo had been digitally cloned, the Empire State Building had apparently moved to Kiev, and the UFO looked like a screen grab from a popular Ukrainian TV show called Aliens.
Stephen Hawking believed in time travel enough to throw a real champagne party for time travelers, sending the invitations only after the party was over. Nobody came.
$800 and a very bad plan
In April 2003, the UK newspaper The Guardian reported on a man the FBI was investigating for insider trading, which means trading on secret information the public doesn't have. Andrew Carlssin claimed he came from the year 2256 with $800. In two weeks, and 126 consecutive high-risk trades, he turned it into $350 million. A spokesperson for the Securities and Exchange Commission, the federal agency that polices the stock market, was blunt: "He's either a lunatic or a pathological liar."
Then investigators found no trace of Andrew Carlssin before he turned up in 2002. None. To win his freedom, he offered a cure for AIDS and the location of Osama bin Laden. The one thing he refused to give up was where he'd hidden his time machine, because he feared what might happen if the technology fell into the wrong hands. His plan, he admitted, had been to lose a little here and there so his record wouldn't look too perfect. "I just got caught up in the moment." The story goes that he made bail and vanished. The SEC later denied every part of the case and dismissed it as pure fantasy, which also happens to be how a government kills a story: turn it into a joke. Still, a man from the future who thought early-2000s regulators would never notice a perfect winning streak was, in a word, a donkey.
A party nobody came to
Wanting to believe isn't foolish, and one of the greatest minds of the age wanted to believe too. On June 28, 2009, Stephen Hawking threw a party, with nibbles, lots of champagne and banners reading "Welcome time travelers." He sent out the invitations, coordinates included, only after the party was over, and published the invitation in his series Into the Universe with Stephen Hawking. Only someone from the future could possibly show up.
No one came. Hawking loved parties, champagne and experiments, and he believed time travel was possible, so the empty room stung. He found a bright side anyway. He worried that warping spacetime for such a trip might release a bolt of radiation big enough to destroy spacetime itself. That would be a far bigger bummer for the universe than drinking all that champagne alone.
