Writing to an IORef is pure, but reading from one is impure?
(I'm being serious!)https://twitter.com/Ngnghm/status/929397640910995456 …
Replying to @glaebhoerl
You can dually declare which is pure only way or another. Then it's a blame game to determine who's "it". More interesting then is to have good types for the plumbing that allows to switch views on what effects are "in" or "out", or add effects through instrumentation.
11:00 AM - 11 Nov 2017
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