You had me at proxy,,,Beardie said:It's always possible that even if aliens do discover Earth, they may be unable to breathe our atmosphere, or find other aspects of our planet toxic to them. This would place a severe barrier on attempts to raid our resources. One way of overcoming this would be to plant a sort of proxy, or avatar, among us which would bamboozle us into doing the dirty work ourselves. If this happened, it would have tragic consequences for our beautiful, unspoilt environment.
Here, wait a minute...
That's the obvious conclusion but the experts would totally disagree with you about what form intelligent life might take. We have evolved to our present state because of many flukes and the environment that we live in but lets for the sake of argument pretend the the asteroid that wiped out the Dinosaurs 65 million years ago didn't happen. The dominant species today might be Velociraptor. Or lets go even further back in time to 250 million years ago when over ninety percent of the life on Earthwas wiped out. It was this event killed the big reptiles and allowed the Dinosaurs to evolve. I wonder what intelligent life would look like if that event hadn't occurred?buggi said:So I have deduced that life on this planet only exists because of the range of temperature due to the distance from sun and the fact we have one moon. it doesn't exist on any of the other planets as far as we know (maybe microbes on mars). Therefore life would only exist on a planet that is similar to our own and in that respect, life would probably develop in much the same way and take the same form.
I think it's a really difficult question to answer. The porridge problem, people argue about a whole host of things. Our planet isn't thought of as particularly special in the sense that it is thought that both Mars and Venus were more similar to us and us them in the past. We only know a limited amount about 300 or so and growing exoplanets.buggi said:what do you think to my theory (waits for it to be ripped apart)
I've always thought that's a bit of a red herring really. In the same way as the suggestion that most of the water on Earth might have come in on comets.marinyork said:Cox did mention panspermia and exogenesis, but they've both gone out of fashion.
Water atoms, like most other atoms are created by dying stars and after discovering extremophiles on hydrothermal vents scientists have concluded that the only essential condition for life as we know it is liquid H2O. Of course that still doesn't explain how life evolved in the first place, there are lots of theories but no definite answers.colly said:I mean both theories might actually be how things occurred but that would still beg the same fundamental questions:
How did life evolve and what is the source of the water originally?