This strikes me as a much bigger and less obvious transformation than the one suggested by the grand-parent (although interesting none-the-less). Specifically,

This strikes me as a much bigger and less obvious transformation than the one suggested by the grand-parent (although interesting none-the-less). Specifically, this seems to take semantics into account whereas the suggested representation is apparently purely syntactic. For instance, the transformation from IF U=V THEN T into (cond ((equal u v) t)) would seem to require an understanding of the IF construct and a mapping of infix operators to lisp functions at the least. Now, maybe this syntactic transformation has been around for decades too (the fact that I've independently toyed with the same idea suggests it's not uncommon to play with), and alternative Lisp syntaxes are quite interesting in their own right, but I do feel that the whitespace-lisp suggestion has merit in its own right (but again, I'm clearly biased). Essentially, it's an alternate syntax for s-expressions, not lisp.