Additionally, "the rate of increase in capabilities" is very much a false flag. Past performance (especially for second-order things like 'rate of improvement') is an absolute batshit insane metric for predicting future success.
https://russellinvestments.com/us/blog/past-performance-no-g...
The advancements have eaten low hanging fruit. Once all the low hanging fruit is gone, we'll all realize GPT will never be tall enough to reach the good stuff.