Carter's brain should be donated to medical science either now or after he passes away so that modern medicine can figure out, how a relatively young man in the mid-1970’s already showed signs of the advanced stages of Alzheimer's disease which only grew worse with age and still, some people paid attention to what he had to say...
In a quirk of history, another (current) President managed to outdo him in sheer naivete, foolish policies and idiocy.