We've also put in an escape hatch for when you really need whitespace there. A subscript or argument list can be detached if you put a dot in front of it:

    print .($bar)
    %foo  .{'bar'}
    @abc  .[123]
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In theory, we could require no whitespace before ++ too, but we don't actually need to unless someone defines a binary operator ++, whereupon the correct response is to shoot them.