Am 6/25/2013 8:45 PM, schrieb Brent Yorgey:

I should add that it is recommended to disable the monomorphism
restriction, by putting

   :set -XNoMonomorphismRestriction

in your .ghci file.  It has very dubious benefits and usually only
serves to confuse.

Hm, this is interesting. To me, most of the extensions are in the "crazy stuff only the profesionalls use" category - I successfully tip-toed around them so far. :-)

Are there other extensions which people would consider to be "generally good to have, unless you know a good reason *not* to enable them"?