I made some friends at Listerine and they taught me a little bit about oral care. That half of adults suffer from oral disease that the number one chronic disease among children is oral disease that we're only taking care of 25% of our mouths when brushing alone and there are more germs in your mouth than there are people on the planet.
And instead of getting a pepper-and-salt effect, we find very clear and sharp divisions between the dialects of the United States, which are getting more different from each other as time goes on.
I love learning about different dialects and I own all sorts of regional and time-period slang dictionaries. I often browse through relevant ones while writing a story. I also read a lot of diaries and oral histories.
To that class we may leave it to refine the vernacular dialects of the country to enrich those dialects with terms of science borrowed from the Western nomenclature and to render them by degrees fit vehicles for conveying knowledge to the great mass of the population.
Mexican food is far more varied than people think. It changes like dialects. I was brought up in Jalisco by the sea on a basic diet - tomatoes chillis peppers of every size and rice which is a Mexican staple. The Pacific coast has a huge array of seafood.