A quick search failed me but I am pretty sure my question has been discussing elsewhere, in which case I would appreciate a redirect/summary. Is there a difference between LightTable and Emacs' eval-last-sexp and similar functions? What is LightTable supposed to add? besides support for Clojure.
It's prettier. And it shows parameter expansion in some cases I think. And some day it will have some fancy-ass version of narrow-to-tag (which actually does sound like a real step forward).