system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If we were to go extinct today, would earth be able to erase any evidence of us completely?

I don't just mean fossils and stuff but all these constructions, bridges, heavy steel stuff etc. Would they be identifiable in a million years? Or a billion?
gpt
Yes and no. The things you mention, such as buildings and bridges, would pretty much fade to oblivion. Foundations would probably remain for some things but for the most part, we would simply fade away. However, many of our more forward thinking projects, such as seed banks, would be around for millennia. When we decide that we want something to last, we can do a pretty good job of it. Furthermore, our effects on the planet will live on for the rest of the Earth's lifespan. Trapped in the geology of our planet will be records of our lives here today. Changes in carbon and methane levels, along with traces of elements and isotopes which simply do not exist naturally, will be infused into the planet for all time. To a future civilization, it would be as clear as the words you are reading right now.