[Haskell-cafe] Reader monad, implicit parameters, or something else altogether?

[Richard A. O'Keefe]

Just an idiot-level question: so these "constants" are subject
to revision, but *how often*?  What is the actual cost of
recompiling and using them *as* constants, compared with the
cost of rereading the stuff every time you run the program and
passing it around?

--
If stupidity were a crime, who'd 'scape hanging?