Part 2/15:
Since the early 1990s, the speaker has identified approximately 12,500 to 13,000 years ago as a pivotal era for human civilizations and megafauna extinction. This period, characterized by sudden and severe climate cooling, was initially thought to be an abrupt shift from the gradual warming following the last Ice Age. The question has always been: what caused these drastic changes?
Historically, some scientists proposed the Earth Crust Displacement Theory by Charles Hapgood, suggesting that a massive crust shift could have unleashed global catastrophes. While intriguing, this theory faces significant scientific skepticism due to the devastating nature of such an event, which would seem unlikely without exhaustive geological evidence.