[stoneman24]

While the decline is documented, there is much to be said for the more experienced employee. More knowledge about what is important in the domain rather than what might be the current fad.

In a competitive environment, certainly take advantage of your colleagues youth and inexperience.

The most problematic area is some people’s assumptions that you are too old to contribute. This might be misunderstanding or deliberate as they want less objections to their plans (or exploitations).

Being your boss might be an ideal solution.