Yeah, I also sometimes describe it as spatial thinking. I'm pretty sure that the extent to which I can draw from memory is down to having spent quite a lot of t

Yeah, I also sometimes describe it as spatial thinking. I'm pretty sure that the extent to which I can draw from memory is down to having spent quite a lot of time drawing as a child and getting good at drawing from spatial recollection. E.g. if I draw a fantasy drawing, it will be closer to impressionism in style, the same way as if I draw something in front of me. It'll be messy. If I draw from memory, the lines are clear, and stylized. The clearest example of that was an art class at school where we were asked to draw our shoes first from memory and then while looking at it, and both were highly detailed, but without any conscious decision, the line-work was entirely different. Same as you when it comes to the "ball rolling" scenario. It "has" the properties people add to it, but if they're not affecting the behaviour, they're just verbal labels attached to an abstract concept - I'll remember them, but they won't change anything about the "imagined" scenario.