I thought starting a healthy discussion about aliens on Amazon might be a good experiment. See here:
dj webber says:
I don’t believe in UFOs but I do believe in aliens, so if I’m right why have we never seen them?1) Aliens cannot physically travel to Earth. They must have invented a technology that allows them to explore here undetected, something a bit like Google Earth perhaps?
2) Aliens have a code which states they cannot reveal themselves to us. If you see aliens as just humans-in-the-future, you can understand why. If we had a time machine, it would be irresponsible to go back and interfere with our past wouldn’t it?David, author of Oom