[SilasX]

Several of them write to a file or store state in one. That's impurity, even if done "nicely".

It just feels like saying "don't talk to the outside world that way, do it this way".

[jdiez17]

The only part where I suggested to store a monad in a file is when I proposed it as a way of pausing a computation and resuming its execution at a later point in time. My mistake for mentioning the word "file", but I meant it in the abstract sense.