I’ll just say it. The earth is around 4 billion years old. Due to the constant shifting of the surface and oceans, we don’t know what existed before. Fossils on

I’ll just say it. The earth is around 4 billion years old. Due to the constant shifting of the surface and oceans, we don’t know what existed before. Fossils only form under very specific conditions. The Sahara for example were a forest before, so why haven’t we found trees and fossils there. What I’m basically getting at is, saying that we should be able to detect whether life existed by looking at sediment is speculation at best. Water and sand is extremely abrasive not to mention scavenger animals and insects that basically recycle waste. I’m not saying that there were advanced civilisations before us, but saying we’re are the first and only advanced civilisation that’s been on a planet for the last 4 billions years, is like saying there’s no intelligent life in the universe and earth is “special” because we can’t find alien life anywhere in our solar system.