>Life began basically as soon as the Earth did. Note that this doesn't tell us as much as you might think about the likelihood of abiogenesis happening: we fin

>Life began basically as soon as the Earth did. Note that this doesn't tell us as much as you might think about the likelihood of abiogenesis happening: we find ourselves relatively near the end of Earth's habitability before the expansion of the Sun will make it uninhabitable in a few hundred million years. If abiogenesis happened much later on Earth, then there would not have been enough time for intelligent life to evolve. Planets where intelligent life manages to evolve within the planet's time of habitability will be the weird rare ones where abiogenesis luckily happened ridiculously fast, no matter how unlikely it is for abiogenesis to happen.