Presence is possible, although my experience is that things like the cliff effect get less potent the more you use VR. You have to be a willing participant thou

Presence is possible, although my experience is that things like the cliff effect get less potent the more you use VR. You have to be a willing participant though to buy into the alternate reality and agree to play within the rules. True interactivity is what's really lacking and the thing we're furthest from being able to simulate. Reality just has an astounding amount of detail when you can interact with it rather than just look at it. None of this is to say that VR can't be useful, valuable or entertaining (I still work in the field and believe in its potential) but we're nowhere near the Matrix and maybe that's not a bad thing.