When Will Machine Intelligence Overturn Bad Information stuck in Human "stable

There are a number of "stable states" which are non-scientific beliefs that stick with certain human tribes or nations
simply because that was the way it has been for a long time.

Take the addition of Fluoride waste to the drinking water, for example.
Although there are a number of books that point to the falacy of adding fluoride to drinking water and the fact that it
obviously leaves American students with a lower IQ, it still persists.