Like wars erupting over FTL rather than sharing it, because the country or a corporation who would be the first to have such technology stands to have the potential to colonize distant planets.
Like wars erupting over FTL rather than sharing it, because the country or a corporation who would be the first to have such technology stands to have the potential to colonize distant planets.
Why FTL implies time travel
A bit technical but still readable. There’s fundamentally no way to travel faster than light that couldn’t be used to send information back in time.
The message literally crosses the path of the ship. It can observe it there. Causality is not violated.
Actually there is. The issue with that proof is that is assumes that local arrow of time for the thing you’re sending back goes forward. This is just an assumption. There’s no proof that it does.
In other words: If your local time goes backward as you travel back in time, there’s no paradox since paradox causing information will just unwrite itself from your brain as you get younger.
There are so many good literary possibilities with this. Imagine a ship of older such types sent to a distant planet. They not only start de-aging during the journey but also losing memories to the point where a bunch of very confused young people arrives at a distant planet where their most recent memory is fighting with mom & dad over being able to drive the car and no idea how/why they’re on a habitable but distant planet
Should plan it so that they were recently trained and briefed on their mission on that new planet, so instead of being just after they’ve argued with their parents they have just finished their training
Maybe it’d be like military service, except they sign up at 18, get shipped out at 70, and arrive… at 18
Wormholes don’t fit into that idea. I would consider that to be FTL even though your actual speed doesn’t need to be all that fast to make use of them.
I think they do. The logic holds as long as there is a method of faster than light communication, regardless of whether that method involves objects actually traveling faster than light or objects traveling through a wormhole.