Drawbacks of System.IO being bound to MonadIO instead of IO?

[atravers]

Curiously enough, here’s a thread involving the opposite choice - using IO a directly:

Reactimate - A new AFRP library

Hello everyone! I have been working on a new AFRP (Arrowized Functional Reactive Programming) library for about a month which I wanted to share. It is called reactimate and is heavily inspired by the great Yampa library. Quick Intro to AFRP For everyone not familiar with AFRP. The basic idea is to augment normal functions a -> b with some internal state. Let’s call this augmented function Signal a b which transforms a into b like a -> b would. However, not only can Signal a b transform a into…

Based on the OP’s comments therein, the major (theoretical) concern with switching System.IO or base to the MonadIO class would be a drop in performance.