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by novaRom 1433 days ago
Or maybe not. If you consider how improbable is the origin of life on the earth then maybe it's not even enough planets in the observable universe to start a life. But the universe is much greater than its observable part.
2 comments

What is the probability of life originating on earth?

We know it is anywhere from 0 (originated elsewhere and found its way here) to 1 (originated here and is guaranteed to originate given the conditions). I don't think we have enough data points to determine improbability yet.

What is the probability of life originating in the universe? We know it is definitely greater than 0..

you may like to read about the "rare earth" hypothesis and the "fine tuned universe" theory.
Do you have some books or articles you could suggest?
Call me gen Z but I prefer my knowledge in video form. Can highly recommend PBS Spacetime's coverage of the topics: https://www.youtube.com/channel/UC7_gcs09iThXybpVgjHZ_7g
Humanity has found aminoacids in asteroids. Given enough time and energy, it seems likely to me that structures would form and then evolve in complexity.
Agreed. I realized recently that planets not only need a goldilocks configuration but likely also need to have a liquid metal core to create a protective magnetic field.

It would still occur quite a bit, and some planets with a protective field likely still produce simple life forms.