My thinking about this topic is vague, and I'm looking to clarify it.
I'm not sure what "intellectual progress" is or if that's even a useful abstraction, but it seems like it should include things like...
- New inventions
- Formalizations of new mathematics (the invention/discovery of probability theory, for instance)
- Scientific breakthroughs
- The founding of new intellectual domains (originating economics, for instance)
- Improvements in methodological standards (the spread of the scientific method being the obvious example)
I'm looking to do a deep dive into rates of intellectual progress over time.