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anomaloustho | 4 months ago

Isaac Arthur has put it in a way that resonated with me. If you live in a universe that has FTL, it’s scarier in a lot ways. It means the really dangerous bad guys in the other galaxy can reach you. If you live in a world without FTL, it makes things happen really slowly and over generations. That’s not as fun and exciting, but it also severely limits the amount of bad guys that can get to you.

And any bad guy that can even reach you basically means you’re already dead if they so choose.

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arethuza|4 months ago

Doesn't FTL also imply time travel - which probably isn't a good thing?

lawlessone|4 months ago

I think wormholes and warp sort of get around it by having the FTL traveler moving slower that light in their pocket/hole through space.

cryptonector|4 months ago

Not really. But it does imply weird things. Sabine Hossenfelder did a video on this.

analog31|4 months ago

FTL means the bad guys have already reached you.

King-Aaron|4 months ago

There is also some folks that suggest that they are already here. Including an awful lot of high profile people within the defence sectors.

cryptonector|4 months ago

It means you see nothing interesting then a shockwave and here they are.