The earliness of life appearing on Earth isn’t amazingly-consistent with life’s appearance on Earth being a filter-break. It suggests either abiogenesis is relatively-easy or that panspermia is easy (as I noted, in the latter case abiogenesis could be as hard as you like but that doesn’t explain the Great Silence).
Frankly, it’s premature to be certain it’s “abiogenesis rare, no panspermia” before we’ve even got a close look at Earthlike exoplanets.
The earliness of life appearing on Earth isn’t amazingly-consistent with life’s appearance on Earth being a filter-break. It suggests either abiogenesis is relatively-easy or that panspermia is easy (as I noted, in the latter case abiogenesis could be as hard as you like but that doesn’t explain the Great Silence).
Frankly, it’s premature to be certain it’s “abiogenesis rare, no panspermia” before we’ve even got a close look at Earthlike exoplanets.