Not as true for people in technical fields, the author, while smart and accomplished is a social scientist and musician. One interesting idea he mentions is tha

Not as true for people in technical fields, the author, while smart and accomplished is a social scientist and musician. One interesting idea he mentions is that older, tenured researchers' productivity goes down and universities would love to move budget-hogging oldsters into teaching. Unfortunately, there's not much glory in teaching even though it's precisely the area where experience is valuable.