Be interesting to plot this out over historical events, year by year. Wars always sour
(must check my typing!
) advance technological development overall, the Age of Computer Games probably caused a pimple (plateau?) in computer science/technology along with a small spike in behavioural psychology, the latter feeding back into games development.
Feedback could be a bug factor here, if polymaths need a brain the size of a planet the multi-disciplinary environment is the next best thing with chemists spiking off physicists etc. Two small discoveries may invoke the Gestalt effect, making a huge one available. Feedback definitely grows exponentially!
What of pure, blue sky maths then? Fermat's Last Theorem was interesting, but... Suppose it might inform a physics maths type that something is possible, way above my GCSE grade!
"Look forward; yesterday was a lesson, if you did not learn from it you wasted it."