...in the current world you should dislike nan?

A little convoluted but I'll accept...

...went undetected (and that the fix is simple if annoying to the "never NaN" contingent).

...a world where no one checks for NaN at any point at any time and...

...being nan

I'm pretty sure this is just the gpus reaction to nan, draw...

...wrote:

Having a game made in D, NaN is my #1 pain to deal with...

...you *do* know they failed why would NaN be unhelpful in localizing the problem?  It...

When a NaN shows up unexpectedly in the results, it's indicative of a bug...

...to graphics programming dealing with floating point, NaN will be a problem that not everyone...

...range information, float that can't be NaN, non-empty types for ranges, and so...

...0, 0.0., ""
2. invalid: max-1, nan, "ERROR"
3. onevalue: 1, 1.0, "1...