; Though graphically the right choice, can't use _ for currying
; because then _!foo becomes a function. Maybe use <>. For now
; leave this off and see how often it would have been useful.
And this other one:
; Non-fn constants in functional position are valuable real estate, so
; should figure out the best way to exploit it. What could (1 foo) or
; ('a foo) mean? Maybe it should mean currying.
