I know this is false because people that are younger than me are generally less experienced (and generally know less) and people that are older than me generall

I know this is false because people that are younger than me are generally less experienced (and generally know less) and people that are older than me generally know more. This seems to be a tech phenomena only though. When I was practicing structural engineering I found that after 27 or 28 people stopped getting better. Some even got worse (forgetting simple things like sheer flow).