Because I'm learning it, almost done through the tutorial, and it looks great.
Name:
Anonymous2011-07-27 0:40
>>205
Consider (mapcar #'F Xs).
If F uses call/cc (it's common to use AMB during map), mapcar would crash, because it doesn't support continuations.
So one have to rewrite every high-order CL function and macros, like LET and PROGN.