In pork I trust
- Aug 28, 2005
- Stamford Bridge
Well, the likelihood somebody believes ET is involved usually comes down to their assessment of how commonly/rarely life originates and to what extent it spreads.
I'm convinced that the universe is full of life. We find key amino acids in meteors all the time, and from what I understand they are made of some of the most common elements in the universe. Maybe there's no other life in our solar system, but I bet it's all over the place out there somewhere.. and we'll probably even find some on Mars & Europa.. and maybe elsewhere in our solar system.. but we'll see about that..
I also think that it's likely rare to ever to evolve to anything like us - apex predators with opposable thumbs and large brains. The reason we are the way we are is.. well, it was basically a whole bunch of accidents on our evolutionary timeline. At one point we were even down to as little as 1,000 humans in existence anywhere.. but we adapted and survived.. and here we are, with our large brains, social structure, naked skin, and other oddities.. and we could still wipe each other out before we get to the stars..
IMO it's rare for life to get to something like us.. but the universe is so huge that rare would still give you a whole bunch of advanced civilizations all over the place.. Whether it's 1 per galaxy to 15 per galaxy.. or whatever.. They are probably out there. Humans are freaks of evolutionary pressures, but there's probably other freaks out there.
They could be very far though. Very very far, even if there's a lot of them.. due to the size of the universe, which we don't even know.. So.. Yeah, I don't exclude "aliens from another planet" as an answer, but I have to admit .. until there is some sort of evidence that we can study and peer review.. I am going to have to go with "probably natural or human-made phenomena"