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On Sat, Jan 10, 2015 at 12:43 PM, Rob Kendrick <> wrote:
> But I actually indicated that it was a horrible thing to do :)

And so it is!  To reiterate what was mentioned in the comments, the
'billion dollar mistake' is a static language problem - that something
with type Foo* could actually be NULL.  nil in Lua is both unique
*and* has a unique type.  It does not appear to be a major source of
bugs in Lua code.