>>13291686>The big argument agains the possibility of FTL travel is that there are nno time travelers.FTL and time travel do seem physically pretty implausible, but this particular argument is a bad one. The most plausible (though still a far-fetched one) form of FTL uses wormholes, and wormholes can only travel as far as back in time as they were created. So they couldn't travel to a time before the invention of FTL. Not to mention it's not obvious at all that for any civilization advanced enough to be able to FTL or time travel it would be worth the cost and effort to visit our time and place.
>What are the odds of intelligent creature evoling on some far away exoplanet looking like some ape form Earth?https://en.wikipedia.org/wiki/Convergent_evolution is a thing. So it's not crazy far-fetched actually. But I still find aliens who traveled here having a humanoid shape implausible, even if it were very common for civilizations roughly around our level. If they got here they must be more advanced than us, and chances are they're not just barely advanced enough to get here, but likely millions of years ahead. Thousand years is a lot of time for technological development, but nothing relative to the age of the universe. So even "only" a thousand years of technological gap would be a bizarre coincidence. And I can't imagine civilizations that are millions of years old, who have artificially developed and enhanced themselves and had internal competition all the time, sticking to this humanoid form for such a long time.
