[Haskell-cafe] mtl design (was ``What do _you_ want to see in FGL?'')

On Mon, Apr 26, 2010 at 7:35 AM, Ivan Lazar Miljenovic wrote:

Whilst freezing it is an option, I feel that this will lead to the same problems that we already face with mtl: most people agree/know that the approach/design is bad, but we keep using it because there's no (one) viable alternative to be used (and thus mtl stays in the Platform, which means more people use it, and thus we have this vicious cycle).

Ivan, Could you elaborate on what you mean regarding the mtl approach & design? What makes them bad? Sincerely, Brad