We found 1 Reddit comments about Calculus. Here are the top ones, ranked by their Reddit score.
The formal modern definition of infinitesimals doesn't really require them to be "truly" infinitesimal. It's defined as a limit, which removes the spooky element from it.
It's pretty strange that he claims being self-taught in college math, but this is literally in the first chapter of a college math textbook (Grossman's Calculus).