Do you believe in UFO's?

My personal belief is that if there is any type of sentient being in the universe outside of on Earth, it doesn't resemble us at all. It's likely that it would have come into existence on a planet with an environment totally dissimilar to ours, and it evolved (assuming it even evolved) based on its environment and would very likely be unimaginably different than we are.

Then of course it has to be "intelligent" enough to ravel throughout galaxies and systems and happen to find our planet or somehow have discovered life on it before travelling here, and then visit us without somehow killing us intentionally or uninentionally. For some reason I just don't find it to be likely.

So I find it inevitable that there's other life in the universe but are they visiting our stupid little planet? I don't think so.

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Originally Posted by Shonos

There's another problem with life visiting us. The fact that we carry tons of bacteria that could be harmful to anything that has not built up an immunity to them. This would be the same for any alien life coming here. Unless they're moving around us in suits there's no way to completely sanitize yourself and prevent contamination. They could make us sick or we could make them sick.

Isn't this a threat every day?

I read about types of super-microorganisms that could survive the intense heat that comes from soaring through space, and the blast from crashing into our planet. Any foreign object (eg meteor) crashing into the planet could carry some kind of super-virus/bacteria like this, so why haven't we all gotten sick and died yet? I mean, not all bacteria and viruses are deadly; we have an immune system that fights them off 24/7.

There's nowhere I can't reach.