

Naw, look at the dinosaurs and the ice age. Life evolves, life survives. The life forms we know of today are dead and who knows what life will look like in the future. Never forget water bears exist. Even if life needs to crawl back up from the ocean it will. The humans are definitely fucked.
Yes, but the what in the goddamn fuck is spread through so many scientific fields.
Who: biology What: chemistry When: physics Where: geology, archeology Why? Philosophy
All these fields just because the universe exists. kind of beautiful if you ask me.