You should talk to an experienced skydiver about what it's like to operate in 3 dimensions. I skydived long ago, and while I never got really great at it, I rem

You should talk to an experienced skydiver about what it's like to operate in 3 dimensions. I skydived long ago, and while I never got really great at it, I remember doing things "instinctively" to make or avoid something happening. For example, dipping a shoulder, especially without thinking about it, to move somewhere or out of the way of someone. I guess bicycle riding is another example of making things happen in unnatural or differently constrained environments.