> Unlikely :-)
>
> The following is much less obscure.
>
> func Shuffle(slice inteface{})
>
> & might have more more sense. e.g.
>
> var cards []card
> ...
> rand.Shuffle(cards)
you've now restricted Shuffle to "shuffling" only slices. and it has
to examine interface{} to determine if it's "shuffle-able". calling
Shuffle(nil) in your example would still not do anything (which is one
of the original issues of OP). i posit that the current shuffle makes
good sense given the language. metaphysics notwithstanding.
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