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Posted by: StillUnashamed 1 year, 8 months ago
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Tangent0011 year, 8 months ago
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Of course it is. Science does it all the time. I don't see your point.
There are competing theories about the origin of life. One of them is panspermia, where the 'seeds' of life arrived via meteors. Life may have been placed here by extra-terrestrials. Ultimately, it is up to the competing hypothesis to make its case.
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Tangent0011 year, 8 months ago
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It isn't. Evolution had Lamarckian as well as Darwinian evolution. Lamark's theory said that organisms passed on traits they gained during their lifetimes. Giraffe necks got longer and longer, the theory went, because giraffe indivuduals stretched their necks during their lives and passed those longer necks on to their progeny. No Lamarckian experiments ever worked as predicted (no matter how many generations of mice have their tails cut off, mice will continue to be born with tails).
There are people who posit 'guided panspermia'--that aliens are actively guiding the changes we see in organisms. The challenge is still the same: produce a better explanation that fits all the available evidence and provide predictions and confirming experiments. In short, do better science.
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