Listening to @kentbye interview David Chalmers on his podcast about his book Reality+, with a thesis that virtual reality is just as 'real' as any other type of reality. His view is that real vs not real is not a sensible dichotomy - physical vs virtual might work better 1/n
I agree (and use the terms physical vs virtual reality in grant application etc). BUT, for so many, being able to touch something and feel it's boundaries and features is such a central part of validating its existence. And here VR is a long way from being able to replicate 2/n
what we are able to experience in the physical environment. All haptic feedback in VR is either very focal or very weak (you will never have your hand stopped by a virtual wall with current consumer, or research grade, technology). This IMO is where the fundamental boundary 3/n
between virtual and physical environments lies, and why VR will never be 'real' to many. Will technology alone get us there? Hard to say - I suspect this is an unclimbable mountain for VR
4/n
4/n
But mixing physical peripherals into a virtual environment (haptic proxies) seems to get us part way there. Handles, torques, even surfaces mixed with VR seem like a powerful way to blur those lines /end
Points of course made by many others, but I do like this quote in the context of #VR 
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