Exponential growth, thats about all there is to it. Advancing from clacking rocks to hunting deer is actually already a huge advancement.
Those 190k years in caves however werent non-advancing. A lot of advancements happened over those years.
Fires, wheels, knot tying, ceramics, pottery, grains, hunting, animal husbandry, medicine, language, art, music, rope…
Also, 10k years is after we gained writing of various forms to store information.
Keep in mind thats at the stage of shit like egypt, the great pyramids, etc. We were waaaaay beyond “cavemen” at that point. We already had trade routes, cities, nations, countless languages, doctors, etc.
The big issue was before that point, all our forms of storing information were just not able to stand the test of time very well, is all. We stopped being “cavemen” way before that mark though.
Writing isn’t just storing information. It’s transmitting it across much greater distances, more times, with much less corruption.
Oral transmission is better than nothing, but written transmission inherently has better reach. Then the printing press allowing for mass reproduction of transmission, then the internet for rapid, much more democratized transmission. It’s the spread of ideas so they can intermingle that’s the super-accelerator.
Woah there. The oldest pyramids we know of are about 5000 years old. That’s halfway to 10k.
Around 10k years before us, we developed from hunter-gatherer cavemen to neolithic city builders with irrigated farms, organized religion and and a feudal society in like 1000 years. That is also pretty quick. Sure, pyramids took a bit longer. But while pyramids are pretty damn impressive, no pyramids does not mean an “uncivilized” society.