[breuleux]

Significant whitespace kind of makes sense in general: humans make heavy use of whitespace to parse code visually, which means that when it isn't significant, the machine and the human are essentially using different parsing algorithms.

As for "getting rid of the syntax", I think that's a bit disingenuous. Much like Clojure, Hy cheats by collapsing nesting:

    (for (i (range 1 10)
          j (range 1 10))
        ...)

    {1 2 3 4} ==> {1: 2, 3: 4}

I mean, this isn't just getting rid of syntax. It's getting rid of structure. As a purist, my stance is that you either keep the structure (`{(1 2) (3 4)}` or you add syntax (`{1 2, 3 4}`, and unlike Clojure, make the comma significant). What you don't do is tuck syntactic information in the parity of the rank of an argument.