[Haskell-cafe] Playing with ATs again

[Andrew Coppin]

Ivan Lazar Miljenovic wrote:
> Don't forget, GHC is open source: if this lack really was "dumb" and
> annoying you, there was nothing stopping you from rectifying this
> situation up until now.
>   

Except that, in the real world, this is actually completely infeasible. 
Yes, I know it's the basic tenant of OSS that you can modify the program 
to do whatever you want. But in reality, something like GHC is far too 
large and complex for this to be a realistic possibility. And this holds 
for most other nontrivial software too.