a model of space is implicit in standard computer hardware. it is defined by the screen.
even more fundamentally, a model of space can be created using four points, as long as they are not all coplanar.
a point is defined for use by naming its coordinates, x, y, and z. this, the fundamental model of space is three coordinates, each of which is a variable to which any value (a number) can be assigned.
since the screen exists, and, for example, one of its corners has a definite location relative to it, we can assign that corner to a point in an arbitrary space xyz.
if we were then going to assign another corner of the screen to another point in the same space as the space within which we located the first corner, we would need to specify which space we were assigning points in. a space, which began as the arbitrary coordinate sets x, y, and z, becomes a collection of point assignments. however, a space can be defined, uniquely, without assigning any points, by giving it a name, or, even more fundamentally, a location. i could create a file on a certain computer, or in a certain cloud account, and call it Space. now, when i assign a point in this space, i do it by recording the point assignment in the Space file on that computer, or in a folder on that computer, or in a folder in that cloud account, a computer and a cloud account being relatively stable environments, such that a file named Space in a particular folder on the computer or in the cloud account is likely to be, at any given time, the "same" collection of data as it was at some other time. this is a fundamental characteristic of space as a fundamental concept or medium or realm of experience: it changes, but in predictable ways. in short, it endures, and because of that, we can return to a place in a space, returning being a particular kind of act.
