There was a quote, which I can't find exactly so I'll paraphrase: Languages evolve not by accumulating new features, but by removing the restrictions that make

There was a quote, which I can't find exactly so I'll paraphrase: Languages evolve not by accumulating new features, but by removing the restrictions that make those features seem necessary As far as I know, Arc does little to remove restrictions from Lisp. Examples: - (setf (* 2 x) (- y 4)) cannot be expressed. - Infinite lists - Infinite memory (limited only by the total amount of information --- far from what we have now) - Why do my objects "disappear" when the program ends? The whole serialization "feature" comes from there. - Hash-tables are 1-1 mappings. Why not n-1? Why can't I write (= (color 'nicholas 'car 2) 'blue) without having to implement it myself? - Speed of execution. Because compilers are not "sufficiently smart", we have to add declarations to the language. Did I miss anything?