My point isn't the competition, it is the fact that there is a physical decline with age that no amount of training can offset, which you can observe if you com

My point isn't the competition, it is the fact that there is a physical decline with age that no amount of training can offset, which you can observe if you compare to a 20yo. I think it is the same with the brain. And like for every large population it is a distribution, there are always outliers. But not many.