It might be harder for older brains to forget the right stuff.
Wanting to remember something and remembering something isn't as much of a conscious choice as we would like.
I have noticed that my recall speed is exponential in the quality of sleep and exercise. If I work out, have a great sleep (post exercise sauna), I am sharp. If I trash myself, I have a noticeable 500ms+ access latency. Not for concepts, but for words. Words always take longer.
