This is what would happen if humans didn't do anything requiring them to think about numbers. If math actually ceased to be, reality itself wouldn't even work. The term "null" refers to the concept of ultimate nothingness, so empty that it doesn't even count as a zero. It would still be a gross understatement if used to describe the scenario, because there would never have been anything in which a scenario could be said to either exist in, or be absent from.
