That's why I used time not color: you have an inherent notion of what it means to move things along that axis. Your point about color also doesn't quite hold --

That's why I used time not color: you have an inherent notion of what it means to move things along that axis. Your point about color also doesn't quite hold -- it's easy enough to map the rainbow colors to rotation. It obviously takes practice, but it's not hard. (Helps to start with two spatial and a color.) And of course it's tied to 3 dimensional space -- the whole point is to couple the correspondence between a high dimensional phase space and a blob in 3 dimensions. But you do have an awareness of the phase space, not just the 3D location -- and you can use it to think about higher dimensional objects.