Now, Zero-summing as it was explained to me is when a person does something so mythically wierd that they are wrung clean out of existence. They never were or would be, all memories of them vanish because they never happened, and all things they made vanish because nobody existed to make them (which is how we now that wasn't the fate of the Dwemer). therefore, since nobody has ever Zero-summed (and if they did, how would anyone know to talk about it?) How do we know it's real?
And if it is, isn't there one obscure text written by someone who was Zero-summing at the time? Dosen't that mean that the particular text dosen't even exist, since it's writer never did?