Re: Add 'subsequences' and 'permutations' to Data.List (ticket #1990)

> So when we subtract out the control, satisfying the consistency
> property increases run time by at least a factor of 4.

Oops, a factor of 3. But anyway, same point.

> The property is nice, but is it worth that penalty?
> I'm not sure, I'd be interested in hearing other people's
> opinions.

-Yitz