[drobertduke]

The "Elite: Dangerous" example is interesting. What's the difference between flying around in space and flying around a typical FPS game? I don't have personal experience with the Rift but here are some thoughts:

- The "context" of the cockpit is helpful in some way, it's an environment which "agrees" with your inner-ear sense. If the cockpit were removed from Elite, would "presence" be lost? If a cockpit of some kind were added to a typical FPS game, would that decrease the dissociated-motion effect?

- Movement is different in Elite. The environment that disagrees with your inner-ear (space and the things in it) is far away, moves more smoothly than a typical FPS, and is sparse. This probably makes it easier to accept than the fast, jerky movement inside small, constrained environments of a typical FPS.