I think your explanation is excellent for getting the point across. All other nice things that we get in FP derive from the "mathematical functions" fact you st

I think your explanation is excellent for getting the point across. All other nice things that we get in FP derive from the "mathematical functions" fact you stated. It's also good in the sense someone can then ask you "how is it that using mathematical functions transform the way you think" and now you have their attention and interest. :)