From time to time, we do like to use computers to look into the distant past. We know how impressed you are by computers. This time, we looked back 4.4 billion years in Earth’s history.(1) We do discover through the use of our simulations that life may have survived the massive asteroid bombardment of the Hadean Eon (4.5 billion to 3.9 billion years ago). Although all traces of any such bombardment have been completely wiped away, we do know it happened by looking at the moon and Mars (Praise Science).
Although many of us did previously think that the bombardment would have sterilized the Earth, we now think that microbes could have arisen as early as 500 million years after the formation of the Earth and survived in subterranean environments.
We do now say:
“Even under the most extreme conditions we imposed, Earth would not have been completely sterilized by the bombardment,” Abramov said.
Given the context of this story that we have imagined, we again like the idea of hydrothermal vents giving rise to life. We hope that you will now be convinced that life arose from non-life, because we have given the process even more time to take place (Praise Science).