And then did we, Most High Scientist, discover that the world was subject to a global deluge (not that stupid global flood story from the Bible or from many other traditions).(1) We did activate our computer, The Seer 9000, and did run time backward to 2.5 Billion Years Ago (praise Science). We do now know that you are always impressed by the Seer’s results. And as you do now know, The Seer 9000 is nothing like those creationist computers used to simulate a global flood.(2) We don’t rely on Assumptions (praise Science), and The Seer does provide Truth.
So, we did find, that only 2 to 3 percent of the Earth’s surface was land until 2.5 Billion Years Ago. We do know you like precision (praise Science). Now, 28% of the Earth’s surface is above sea level, but alas, we do now consider this to be something of a novelty.
“The team assumed that back then Earth’s mantle was up to 200 °C hotter than it is now, mainly because there was then a larger quantity of radioactive elements decaying and producing heat. A hotter mantle would have made the crust beneath the oceans hotter and thicker than it is today, buoying it up relative to the continents. The resulting shallower ocean basins would have held less water, leading to the flooding of what is now land. In addition, the hotter mantle would cause the continental crust of the time to spread laterally, making it lower-lying and flatter than today, and so more likely to flood.”
We do now say, that During the Water-World period, that any oxygen produced by photosynthetic bacteria would have been rapidly used up through decaying interactions with organic material in the oceans (praise Science). Then did newly emerged land erode, covering the organic sediments in the oceans, which did allow oxygen to build up in the atmosphere.
Then did the oxygen breathing organisms begin to flourish. The erosion of the land did cause an explosion of life, because it did fertilize the oceans (praise Science). And then did the newly formed coastal areas provide habitats that allowed photosynthetic life to flourish.
(1). Ancient Earth was a Barren Water World, New Scientist