UFO's (2 Viewers)

[dutchman]

I've had that happen to me, I got on a plane and when I got there the time was different.

Yes but you were able to go back again and not find that your family had all died hundreds of years ago!

 

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[clint van damme]

Yes but you were able to go back again and not find that your family had all died hundreds of years ago!

Unless he flew with Ryanair

 

[Gazolba]

Also totally ignored by most sci-fi stories is that it's impossible to travel long distances at high speeds without also travelling forward in time. And the time travel is one way so you can never get back to the time period from which you started.

There's always wormholes, which since space is curved, you could theoretically use to travel from any place in the universe to any other place in a fraction of the time linear travel would take.

 

[skybluetony176]

There's always wormholes, which since space is curved, you could theoretically use to travel from any place in the universe to any other place in a fraction of the time linear travel would take.

You do know that a wormhole in space is purely theoretical? There isn’t actually any evidence that A) they exist at all and B) even if they did exist that they’d actually work in accordance to any of the many theories about how they could work.

 

[shmmeee]

There's always wormholes, which since space is curved, you could theoretically use to travel from any place in the universe to any other place in a fraction of the time linear travel would take.

Not true, new research suggests travelling through wormholes might even be slower.

Traveling through a wormhole may be possible—but it wouldn't be a shortcut

 

[Gazolba]

You do know that a wormhole in space is purely theoretical? There isn’t actually any evidence that A) they exist at all and B) even if they did exist that they’d actually work in accordance to any of the many theories about how they could work.

Theoretical to us, but maybe not to aliens.
But regardless of whether there is any such thing, aliens could have means to travel vast distances that we can't even imagine.
Just as ants, even though having sophisticated societies, have not yet invented the internal combustion engine.