I wonder though how much of that has to do with the wealth and ease of information that is available now vs. 30 years ago? Not that I am saying that you feel s

I wonder though how much of that has to do with the wealth and ease of information that is available now vs. 30 years ago? Not that I am saying that you feel smart because you have read more. But the fact that there is so much information that would not have been as easily attainable 20 or 30 years ago as there is now. At the very least the fact that I can read and comment here definitely impacts my 'intelligence'. Plus all the information that I am exposed to and so easily with no effort other than reading. It's simply not the same as back in the library or 'read books' days. Here I can be doing one thing and then easily learn (to take a break) about something entirely different. With almost zero overhead to do so. Once again I am talking about the potential mental sharpness that produces independent of the actual information that may or may not be retained.