haskell brain damage cancer invades scheme*

http://blog.racket-lang.org/2007/11/getting-rid-of-set-car-and-set-cdr.html

(* depr derp we're not "scheme" anymore... i know)

>>4
Types in Lisp are runtime checks and types in C are the size and some syntactic sugar for choosing between signed, unsigned, floating-point, and pointer (to memory regions of a certain size) operations.