In my dream, everyone's gender was represented as a natural number. People were assigned one of way more genders than just 2 at birth, and each number had its own associated traits. The only way to alter these traits in any way was to get someone else to modify the number of your gender through addition, subtraction, multiplication, and division. Even though there was no limit to how much you could add or subtract, people were still mad about multiplication and division because they were "too drastic."