I came here to say pretty much the same things, but would add another heuristic: - Grandiose-sounding claims ("the NNAEPR principle") backed only by generic in

I came here to say pretty much the same things, but would add another heuristic: - Grandiose-sounding claims ("the NNAEPR principle") backed only by generic informal arguments and/or well-known facts ("...for more realistic activation functions, simply note that they themselves can usually be approximated by polynomials...").