> There's something I'd like to understand: the article talks about FRP yet writes "(Functional) Reactive Programming" with "functional" between parentheses, wh

> There's something I'd like to understand: the article talks about FRP yet writes "(Functional) Reactive Programming" with "functional" between parentheses, why? This comment https://gist.github.com/staltz/868e7e9bc2a7b8c1f754#comment-1255003 https://gist.github.com/staltz/868e7e9bc2a7b8c1f754#comment-... and this discussion https://twitter.com/ReactiveX/status/483625917491970048 https://twitter.com/ReactiveX/status/483625917491970048 > If it is "really" functional, I take it it's quite deterministic: can you then take all these streams of events and "replay" them at will, always ending up in the same intermediary state and, eventually, in the same final "state"? Yes. See this http://debug.elm-lang.org/ http://debug.elm-lang.org/