4 ms·
I have no doubt that it will happen eventually but don't expect it to be intelligent life. It will be the leftover of microscopic life or something very small o
by WheelsAtLarge 3y ago
I have no doubt that it will happen eventually but don't expect it to be intelligent life. It will be the leftover of microscopic life or something very small or if we are lucky it will be live microbes. ET with its own space capsule will not happen anytime soon.
- _hypx_ 3y agoIf we only find prokaryotic life, that would suggest intelligent life is rare.
- adastra22 3y agoSymbiogenesis has occurred at least three separate times in the history of life on Earth. It is very unlikely to be a great filter.
- _hypx_ 3y agoTwice, not three times. And the second in an organism that already achieved symbiogenesis. All of this took around 2 billion years or so to happen. It is a potential great filter candidate, but we only have a sample size of one. So if it turns out the above set of events is rare, then the prokaryote-eukaryote transition would be a major barrier to intelligent life.
- adastra22 3y agoThree times. There is a very small, not extensively developed branch of life that has a separate primary symbiogebesis event (incorporating cyanobacteria) in the very recent evolutionary past, separate from mitochondria and chloroplasts: https://en.m.wikipedia.org/wiki/Paulinella https://en.m.wikipedia.org/wiki/Paulinella
- _hypx_ 3y agoWhich would be the third time in nearly 4 billion years. Still pretty unlikely. Both second and third examples are with an organism that already achieved the eukaryotic stage. It's still not clear if the original shift was a likely event.
- prirun 3y ago> ET with its own space capsule will not happen anytime soon. Or may have already ready been and gone billions of years ago.