Sure . Go ahead and play in a dead community . You think whales don ' t need F 2 Ps ? PS try 1 % instead of 10 %. Because that ' s pretty much the average number of whales in mobages <| sep |> I mean . It ' s hard to catch him . He knows when you ' re awake . <| sep |> There ' s multiple theories on what did preColombian indigenous people in , but climate change is one of the most compelling arguments I ' ve heard . The how is kinda of moot though because all that matters is that there were pretty big indigenous civilizations with a fairly complex trade network , agricultural system , and urban centers . These had all but disappeared or were in the final stages of decline by the time the Europeans had arrived which gave them a hefty advantage over indigenous people , more so than the guns and germs in my opinion . Here ' s a study on 4 different preColombian cultures and how climate change affected them 1767 contextusgsstaffpub