> It _is_ much worse than the two-byte "overhead" of one s-exp node. I don't believe you. Atoms are roughly the same, and compounds, well: [1,2,3] vs (1 2

> It _is_ much worse than the two-byte "overhead" of one s-exp node. I don't believe you. Atoms are roughly the same, and compounds, well: [1,2,3] vs (1 2 3) {"a":1,"b":2} vs (("a"1)("b"2)) I suppose if you have a lot of booleans you might save a little by using T/NIL or #t/#f, but otherwise it's more or less a wash. (You might suggest plists, ("a"1"b"2), for dictionaries, in which case you save a whopping two bytes per entry. But I'd choose the nested-list format over plists, if I were encoding a dictionary into an S-expression.)