Just imagine how much we will see change in our lifetimes.

For some of us; that's dial-up, to AI, to who knows what.

We don't know yet, of course, but I have the impression that the century in which things changed most was the century from about 1865 to about 1965. Stuff seems to have slowed down a bit since then. But it's all subjective, really: it depends on what you think is important.

	▲	eszed 29 minutes ago \| parent \| next [-]
		Agree. For the drama of it, I'd move the end-date up to 1969, just to catch the moon landing. My great-grandfather learned to care for horses, and drive a wagon / buggy, and keenly remembered the first time he saw an automobile. He qualified as a doctor before antibiotics were invented, and then lived long enough to at least exist in a house with a personal computer - whether he ever used it is something I never thought to ask my grandfather!
	▲	brnt 2 hours ago \| parent \| prev [-]
		1969 is a big year due to man landing on the moon. Cars becoming ubiquitous (they certainly were a luxury item well into the sixties here). 1970s gave us the integrated circuit and arguably the start of modern computing. 1980s the collapse of the Soviet Union, genetic research. 1990s: well, I can go on :P