@BRIAN In re: yesterday, no, I wasn’t trying to be disdainful. When I wish to be, there’s no doubt about it. (You’ve given me no trigger for it.) Ask around; I’ve got my “fan club”. I’m a “troll” to some and “reasonable” to others. It’s my bag …
I also love history and seeing how people trip up time and again. What’s interesting is that people look at what was and can’t conceive of things having turned out otherwise. It was not “ordained” that our world should be as it is. The American Revolution might have been averted or lost by the colonists. If Hitler hadn’t been anti-Jewish he might well have had “the bomb” first, and leveled London and Moscow, then turning his attention toward the Americas.
The “alternate history” works of Harry Turtledove, Eric Flint, Robert Conroy, and Manny Othurz center on “upsets” of history with far-reaching consequences. Yes, they’re “speculative fiction” but they demonstrate that no particular outcome is implausible. (I won’t get into quantum physics which predicts that any throw of the dice results in all possible combinations occurring and that we’re simply situated in our frame of reference: see ST,TOS: Mirror, Mirror for a well-known alternative [“parallel universe”] scene.
Anyway, enough. Carry on!