Did you listen to the Joe Rogan interview? 3 hours. I found him very coherent, sharp even. I had to rewind a few spots where I didn't understand but Trump did, to figure out what they were talking about. I'm sure there is context I don't have, but he could immediately have a new context in his head and opine about it much faster than I would expect for a 78 year old. I think it must be the golf.