The Clovis points are stunning workmanship. But one day the Clovis People and many of the large animals they ate just went away.
They probably did not “just go away”.
SunkenCiv has repeatedly posted the book by Firestone, et al, about a giant extraterrestrial air burst that probably destroyed the Clovis culture, killed most of the large mammals so that they went extinct not long afterward, and created the Carolina Bays. It is fascinating reading, and I am inclined to believe the hypothesis.
The Cycle of Cosmic Catastrophes:
Flood, Fire, and Famine
in the History of Civilization
by Richard Firestone,
Allen West, and
Simon Warwick-Smith