It's an interesting mental litmus test. Opposition to RPN is rarely about inability or carefully considered dislike. It's mostly about rejection of difference.

It's an interesting mental litmus test. Opposition to RPN is rarely about inability or carefully considered dislike. It's mostly about rejection of difference. Same deal with lisp syntax. Beginners take to Racket's parens easily, but (some) veteran programmers are dispositionally unwilling to even attempt to see the rationale beyond the learned aesthetics, even when there's so much to gain.