Side note while I think about it, actually we have more evidence than we think. Even on a planet clearly adapted to support life in massive varieties, it seems

Side note while I think about it, actually we have more evidence than we think. Even on a planet clearly adapted to support life in massive varieties, it seems that all life on earth evolved originally from a single organism. We have millions of years of geological and paleontological evidence, and thousands of years of recorded history, and we have no evidence that this happened more than once. It does certainly seem from our limited evidence that abiogenesis (or going from not alive to alive) is at best extremely uncommon, or at worst, an isolated anomaly.