Tardigrades arguably arrived via interstellar spores. There's some thought that the octopus family might have as well. In fact if panspermia is true, then we all started out as aliens, and adapted to Earth by evolving to do so. So maybe we’re all aliens, and this is our spaceship; in which case, we’d better start paying attention, because it’s beginning to get dangerously over-crowded and over-heated. — Wayfarer
So, my point is, even if we found an Earth like world - with similar gravity, atmospheric composition etc - this similarly is only superficial - and its biosphere - especially life at the microbial level - would make moving and colonising this planet impossible - unless we develop immunity to its biosphere as we have done here on Earth. — JohnLocke
Such speculative claims that cannot be verified by the scientific method raises dubious results that may perhaps be creative but ultimately a very poor conception of reality. Can the OP or others explain to me how this is either philosophy or philosophy of science? — TimeLine
Would it have some sort of genetic coding that is recognizable? — T Clark
So logically, the metabolic similarity might be surprisingly more close than expected, while the genetic coding mechanism would almost surely be a completely different kind of language as the meaning of a sign is essentially arbitrary. — apokrisis
This never stopped Kirk. — Cavacava
But it remains the case that science treats it as a possibility even if an unlikely one. That seemed to be what you were asking for opinions on. — apokrisis
I thoroughly enjoy threads like this and my asking opinions from others is really to ascertain where to strike a balance because to me, the OP is one giant splatter of nonsense. Anyway, thanks and I will think about speculative theories and the boundaries to scientific method a bit more. — TimeLine
I worry that if you are considering drawing a line at a point I consider pretty mainstream — T Clark
It is not mainstream science. — TimeLine
However as a general issue of policing debates here, this site ought to be enforcing standards of critical thinking, not trying to enforce some mainstream belief system. It is how folk handle what seem to be extraordinary claims that matters. And going and checking the facts - is panspermia a mainstream research topic? - would be an example of critical thinking in action. — apokrisis
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