[Haskell-cafe] More ideas for controlled mutation

[Henning Thielemann]

On Sun, 24 Apr 2011, Edward Z. Yang wrote:

> Laziness can be viewed as a form of controlled mutation, where
> we overwrite a thunk with its actual value, thus only running
> the code once and reaping great time benefits.

Reminds me on a discussion about 'blue printing' in the past:
   http://www.haskell.org/haskellwiki/Blueprint