3 ms·
Why is emergence of bacteria not rare? We don't know in sufficient detail how Origin of Life happened to constrain its probability very well.
by pfdietz 2y ago
Why is emergence of bacteria not rare? We don't know in sufficient detail how Origin of Life happened to constrain its probability very well.
- mcswell 2y agoWe of course don't know. But I think the claimed evidence is that bacterial life arrived quite early in Earth's history, perhaps a few hundred million years or less after there were permanent basins of water. So the assumption is that it arrived almost as soon as it possibly could (whereas intelligent life (us) took a few billion years longer to show up).