Is 0 = nothing?

0 <> void
0 is not emptyness
0 is not nothing

0 is a conceptualization of measurement realizing the nearness to the minimum. There is *no* such thing as "zero" itself which can be stated to be void.

Though *0* is not a "concrete variety" but it is an abstract variety like all other numbers representing count or measure of stuff.

I see an apple in a basket. Next moment I chew and gulp it down my throat. I say "there are no apples in the basket" or there are zero apples in the basket" instead of "there is voidness in basket" or "there is emptyness in basket".

That's because of conservation of mass/energy law. Matter can neith be created no be destroyed. The apple that was there a moment ago was now converted into something inside my stomach. But it surely didn't become void or vaccum. The matter that made the was still present but morphed into some other form.

Thus the apple didn't make its space empty.
But it became something else which led to its realization as "zero apple" and not "void/empty apple/space"