> So, I think a better naming would have been... Often I like to use past participles as names for stream or signal combinators. So instead of `map`, `filter

> So, I think a better naming would have been... Often I like to use past participles as names for stream or signal combinators. So instead of `map`, `filter`, `fold` -- the names are `mapped`, `filter`, `folded`. For example, given a stream, `(mapped stream f)` returns a new stream with f mapped over it. It returns a mapped stream.