I always thought about it like this. Put your fancy page with X-Y coordinates on the ground. Add a new dimension perpendicular to the ground. This is the Z-axis, it goes up.
I could see that being totally valid after thinking about it for a second!
I imagine it as a new dimension growing “up” out of the X/Y plane (as burrowing into the ground would be going into “occupied” space, it’s forbidden). But “depth” does make that make more sense.
I always thought about it like this. Put your fancy page with X-Y coordinates on the ground. Add a new dimension perpendicular to the ground. This is the Z-axis, it goes up.
I have to agree as well, the ground is the most natural plane to be x-y.
But in those cases, isn’t positive Z going “away” from you ? I.e. Into the ground ?
And in math classes this has always been described to me as adding “depth”.
I could see that being totally valid after thinking about it for a second!
I imagine it as a new dimension growing “up” out of the X/Y plane (as burrowing into the ground would be going into “occupied” space, it’s forbidden). But “depth” does make that make more sense.