I just realized that in something like 200 years, no one is really going to understand the difference between George Bush and George W Bush. Like, they'll know they were two different people, but mis-attributing something that one Bush said to the other Bush will be seen as an easy mistake to make (much like how nowadays, John Adams and John Quincy Adams are seen as two different people but are not really that different in the average person's eyes).
Like, there might be memes of 41 saying "...fool me -can't get fooled again. Heheh" and no one will realize what's wrong with the picture.
Having worked at a movie theater, I can tell you that the answer is "by a human"
If you can make a machine that cleans a popcorn popper well enough to pass a health inspection, you'll be a very rich person. Especially a small vending-machine-sized popper-and-dispenser all-in-one jobby.