Yeah, aliens or Earth, like who cares? /s
Comment on Why does all of this alien stuff take place mostly in the USA?
PlantbasedChe@lemmy.world 2 years ago
Generally others think aliens are probably already between us since we are not that special for being top specie on universe history.
So aliens are not a big deal
rikudou@lemmings.world 2 years ago
abbadon420@lemm.ee 2 years ago
Aliens amongst us? That is preposterous! Who told you this nonsens, give me there names. Seriously, they need to be dealt with.
cynar@lemmy.world 2 years ago
Interestingly, there’s a strong argument that we are one of the first, at least locally.
Firstly, an infinite amount of time hasn’t passed. Time actually started at the big bang (Asking what was before is akin to asking what is north of the north pole).
The big bang also didn’t create any heavy elements, these required stars to produce. The first generation of stars could not have supported life. Later generations of star each have more heavy elements available. These allow for the formation of rocky planets. Our sun is in the earlier phase of this.
This leaves 2 questions. How long for life to evolve (all the way to technological intelligence)? And how easy is interstellar travel?
Life on earth seemed to pop up almost as soon as it could. That could be normal, or it could be us winning the lottery on the first play. As for evolution speed, we have no clue for comparison.
The 2nd is the critical one. As it stands, interstellar travel seems limited to the speed of light. This, and the cast energy requirements make interstellar travel and colonisation difficult. If a local species developed this ability, it is quite likely they reached us before now, and colonisated earth. The fact we can trace our evolution shows this likely didn’t happen. The chances of such a species turning up in the window of time we are in, is almost zero. The fact we exist, without alien overseers is evidence we have won the race, at least locally.