maybe its the way its supposed to be though. obviously we can't stay on earth, and if we know anything about life its biggest purpose is to multiply and spread. problem is, the universe puts the nearest planets so far away its literally impossible to get biological material to them, let alone the nearest galaxy. maybe building machines that can survive in space and multiply on other planets is what we were supposed to do. or maybe we freeze a bunch of sperm and eggs and shoot them to another planet with a robot that can make a bunch of test tube babies that grow up and habit the new planet.
in any case, its just becoming less likely to me that we will ever find a way to travel across space in an any sort of efficient way. its very possible the universe is packed full of intelligent life, but we have no way to get to each other or even communicate in the simplest ways... i mean, shit, ALL radio broadcasts beaming from earth.. even since the early 1900's... have been traveling at the speed of light this whole time and its not enough to reach even a tiny fraction of our own galaxy... and our galaxy is one of billions or possibly trillions out there. if light is by far the fastest method of communication there is, then 99.999999999999999999999999999999999999999999999999% of the rest of the universe has no way to know we are even here.
look at this. what our galaxy would look like if we could take a photo of it from that distance, one galaxy out of hundreds of billions. and our radio signals have traveled so little that we cant even mark it on the map without zooming way in.
its absolutely mind blowing.