I wonder if I'm alone in being optimistic about this. I believe that the gigantic inflow of money into hardware will lead to large increase in production capabilities, accelerated progress and perhaps even new, better architectures.

I actually agree: a spike in prices due to bumping against capacity limits is way better than a downturn in the market. But this is only really true if AI hyperscalers are incented to space out their big buildouts over time (while raising their prices enough to ration current demand) so that suppliers can have some guarantee that their expanded capacity will be used.