Cultural Evolution is Accelerating

Tim Morton has a post on accelerationism. I made the following comment:

From a certain POV the long course of history is accelerating. The time from the emergence of speech to the emergence and rationalization of writing (among the elite and a specialized clerkhood) is measured in tens of thousands of years. The time from routine writing to the scientific revolution (and the printing press and capitalism) is measures in thousands of years. The interval from that to quantum mechanics, relativity and computing (Turing to von Neuman) is down to hundreds of years. What's going on now at the scale of tens of years?

For more see my site on Mind-Culture Coevolution.