There is ALWAYS an exception to everything. And in this case, the exception is literally to everything.

Even a+b=b+a has an exception: for something like adding strings, and even in that exception there an exception in the case of a=b!

There's probably even an exception to the "There's always an exception" rule!

This sort of reminds me of the color debate: are black and white colors or the absence and completion(?, dunno the right word) of color?