Better implementation of hang?

[aDifferentJT]

I may be mistaken but does hang = hang not serve as an adequate implementation, it does not seem to use much in the way of resources.

[conal]

I'd expect GHC's RTS to throw a "black hole" error.

[aDifferentJT]

It didn’t when I tried it on ghci, optimisations may cause different behaviour though

[conal]

As I understand it, GHCi behaves differently from compiled Haskell code in this regard.

[aDifferentJT]

You are indeed right