PBS’ Guns Germs and Steel documentary took an hour and several tons of jet fuel to explain, well nothing. The documentary merely stated, but neither explained nor tested the hypothesis.
A great shame, because the book is still a hypothesis worthy of testing. I saw Jared Diamond talk about a year ago, and he had plenty of new evidence to add.
“The information density is appallingly low, and what we got in an hour was the equivalent of reading a handful” of pages from the book.”