"Nothing" isn't a real concept

[Dendrek]

So what is zero then? Or did you just answer that? lol

Math was never my strong suit.

Zero is a defined value. It's "defined" because it's a known value, a specified value, a value that can be plugged into an equation and has the potential to give a defined outcome. Although zero may imply, in certain contexts, the lack of a specific thing ("I have 0 apples") it doesn't inherently mean "lacks value." It could represent a starting point ("start at time = 0") which is arbitrarily chosen and doesn't have to represent the true beginning or even represent a point at which nothing exists. And it can be truly arbitrarily chosen and used only for the simplicity of numerical computations. For example, in a physics of motion-based problem, you can choose to have the point 0 appear at any number of locations, and are often advised to choose a point where the calculations would be easier.

[schwarzkopf]

So what is zero then? Or did you just answer that? lol

How many apples do I have?

A: I have 12
B: I have 0
C: You have no idea how many I have

How many wheels does a cherry normally have ?
D: WTF

There are more ideas that are not an amount than you can imagine - a few given above.