This claim is not that there was 20K T-rexes at one dire point in history but an average over millions of years. Humans ended up surviving that disaster, and t

This claim is not that there was 20K T-rexes at one dire point in history but an average over millions of years. Humans ended up surviving that disaster, and then went on to populate the whole earth. Also side note, supervolcanoes are scary as hell.