Non developed nation generations are usually closer to 20 years apart [1] and probably would be closer to that for much of human history. So it’s closer to 575

Non developed nation generations are usually closer to 20 years apart [1] and probably would be closer to that for much of human history. So it’s closer to 575 generations. Your point still stands though... it’s not a lot of time in the grand scheme of things. BTW: The longest recorded family tree is that of Confucius which goes back 80 generations. [2] 1.https://en.m.wikipedia.org/wiki/Generation https://en.m.wikipedia.org/wiki/Generation 2.https://en.m.wikipedia.org/wiki/Family_tree https://en.m.wikipedia.org/wiki/Family_tree