[crystaln]

A widespread theory among et believers is that nuclear explosions bring the attention of et intelligence around the universe as a sign of sufficiently advanced life to investigate, and that aliens are here to make sure we develop without self-destructing and join the intergalactic world peacefully.

[cryptonector]

In reality other advanced civilizations elsewhere and elsewhen in our galaxy are as constrained by the speed of light as we are, thus they can't come here as we can't go there.

[anomaloustho]

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.

[Teever]

That doesn't stop hypothetical automated sentinel probes that alien races have seeded the galaxy with as a surveillance net from picking up the atomic blasts and investigating.

[GloamingNiblets]

Isn't this ruling out outlier observations given our model, rather than evaluating our model given outlier observations?

[jansan]

Is Anyone here educated enough to tell if quantum entanglement could (hypothetically) be used to transmit information faster than light?

[estimator7292]

That's our best guess anyway. My bet is that superluminal travel will be possible once we resolve quantum gravity and break all of Einstein's rules.

At least that's what I tell myself. Hard to appreciate the majesty of the universe if we're forever locked into a single star system.