"fold": a replacement for "reduce"

[Timon Gehr]

On 03/29/2014 02:02 AM, Meta wrote:
> On Saturday, 29 March 2014 at 00:58:46 UTC, Meta wrote:
>> I'm confused now. What exactly was it that you were saying didn't make
>> sense?
>
> Ah, I see now. When I said "it's a bit unintuitive as to what works and
> what doesn't", I was talking about how unless you know exactly what can
> be assigned to an alias and enum, it seems unintuitive or even random as
> to what works, but there are actually sound logical underpinnings.

My point was: Yes, there are rules, but they are 
inadequate/unnecessarily restrictive.