In my late forties. The quality of my lectures became fluctuating. Thought it was temporary but soon realized that on average it was slowly but steady downhill.

In my late forties. The quality of my lectures became fluctuating. Thought it was temporary but soon realized that on average it was slowly but steady downhill. Edit: Should say, that’s twenty years ago and not the slightest indication of dementia today. But significantly harder to handle complex things in my mind only.