@scottjhoward
Japan tried to innovate out of its demographic and resource constraints, which drove its successful economic moment. Did it stall because the innovators got old - ran out of bodies/brains? Or they feel off the technology waves? Certainly not mutually exclusive and a more complex question than I just provided.
Another way to question did Japan fall off because of the timing of their demographic cycle or the timeline of the technology cycle?
Again not mutually exclusive and more nuanced questions to be asked.