Adrian Hey wrote:
.....
I was going to respond, but Cale very eloquently said most
of what I was thinking.
Let me just add one thing. Sometimes you hear the argument
"I need a global IORef here because it's to track the use of my
single screen" (or keyboard, or elevator, or some some
other gizmo in th real world).
I think such decisions are just generally poor design, and
it should not be done in any language. The number of physical
resources that a program can control should never be assumed
to be one; things change.
-- Lennart
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