[overloaded]

From the logo I was expecting Japanese brackets:

    「「MyObject alloc」init」

For the vacillating, have the best of both worlds:

    〔〔MyObject alloc〕init〕

[fosap]

I'd like to see a lisp that allows all the kinds of different brackets. ( 〖〗〘〙〚〛〈〉() [] <> and maybe more.) I think i can make the code easier to read. All we would need was a emacs script. When the cursor is on the closing bracket there could be a drop down menu. But aside from Haskell Language creators seem to be god dammed afraid of unicode in the language.

[callmecosmas]

Racket allows for (), [] or {} in code and it seems that in practice [] is used to distinguish some syntactic forms that have nested parens from normal function calls such as the let and cond forms. So instead of

  (cond ((...) (...))
        ((...) (...)) 
        (else ...)) 

you get

  (cond [(...) (...)]
        [(...) (...)]
        [else ...]) 

which seems to me to be more readable. See here for an example http://docs.racket-lang.org/reference/if.html?q=cond#%28form...