I ran across the alarming phrase intellectual menopause a few months ago in John Gall’s Systemantics, and it naturally stuck in my brain given I’m pushing 50 and getting predictably angsty about it. The phrase conjures up visions of a phenomenon much more profound and unfunny than the more familiar one we know as midlife crises. It sounds much worse than merely buying a sports car and chasing younger women. And if you chase down the idea, it turns out it is worse. And sadder. And unfunnier.