(Replying to PARENT post)

The thing is that subjectively "FTL" travel, a la Star Trek, is totally possible thanks to special relativity contracting distances between objects.

A little math shows the relative velocity in which you travel one light year measured in a rest frame, in one year in your spaceship's frame, is 70.7% of the speed of light.

If you happened to be moving at the ludicrous speed of the "Oh-My-God" cosmic ray recorded in 1991, it would take you three seconds of your time to travel to the center of the galaxy.

That should be good enough for anyone!

https://www.fourmilab.ch/documents/OhMyGodParticle/

๐Ÿ‘คsevenless๐Ÿ•‘9y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

The center of the galaxy is 32,000 light years away. 32,000 years will have passed at the center of the galaxy by the time you get there in your 3.2 second journey. If you then turn around and go back, another 32,000 years will have passed before you get home.

It might feel more like time travel than space travel.

๐Ÿ‘คsnarfy๐Ÿ•‘9y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

But length contraction means that, subjectively, you'll think you've only travelled a few hundred thousand kilometers.
๐Ÿ‘คsimonh๐Ÿ•‘9y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

Still gonna need some inertial dampers though.
๐Ÿ‘คsoVeryTired๐Ÿ•‘9y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

That bit about the particle is fascinating, but I am struggling to understand why a particle that travels at 0.99x of the speed of light is faster than a ship that travels at 1516x the speed of light. Is the Star Trek universe not subject to time dilation?
๐Ÿ‘คsliverstorm๐Ÿ•‘9y๐Ÿ”ผ0๐Ÿ—จ๏ธ0