Spot on. Just writing to add that a hypothesis that may explain part of why you get "lower levels of cognitive performance" as you age, is that you've quite a few more data points in mind to draw on (consciously or not) when processing new information.
Exactly, slightly slower processor, better abstractions. In other words : wisdom (not a mandatory property of being old though). That's why I'm so so sad about management replacing 40+ people by young idi*ts fresh out of school.
