Anne: So do you think zero is a number?
Anne: Zero. Is it a number?
Jamie: Yes and no. You can say it is, because you use it as a number within number systems. Or at least, you use it in the same way as a number. For example, in the number 507, the zero acts like a number. It signifies that there aren't any tens in the number, just hundreds and units. on the other hand, because the whole concept of zero is for it to indicate the absence of a number, it can't really be one.
Anne: Don't you want to know what I think?
Jamie: Um, yeah, OK, if you find it that interesting.
Anne: I think zero isn't a number.
Anne: Do you want to know why?
Anne: People say that zero is the opposite of one, right?
Anne: Because one is presence and zero is absence.
Anne: But it's really minus one, though, isn't it?
Anne: The opposite of one. If the opposite of something is its absolute reverse, like its image in a mirror or whatever, then the opposite of one must be minus one. Zero just sits between them both and gives them meaning. So I think that zero isn't a number. I think zero is God.
Jamie: What did you do at university?
Anne: English and philosphy.
Jamie: So I expect zero has a philosophical application?
Anne: Yeah, in psychoanalysis, where the self is represented by one, and the other by minus one. The zero is the mirroring point and therefore the point of separation. It is also the point of identification, alienation and otherness.
Jamie: Where did you read that?
Anne: I didn't. I made it up.