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It was thus said that the Great Coroutines once stated:
> Another thing that seemed pretty arbitrary is that __index can be a
> table.  That table can have a metatable.  But the __index of that
> table that is the first __index cannot have a metatable.  I just
> expect things like that to recurse, instead of being a
> first-level-only trigger.  The same for __newindex.

  Roberto & Co. probably did that to avoid this:

	waiting  = {}
	longtime = {}

	setmetatable(waiting  , { __index = longtime} )
	setmetatable(longtime , { __index = waiting } )

	waiting['for'] = 'Godot'

  -spc (But infinite loops are great for producing vast amounts of nothing
	real quick ... )