EDIT, NOTE: when clicking from inside the SciAm article, the Nature article was displayed. Clicking on the link from HN shows a paywall.
The great challenge of VR science is finding the off button. But then, if we find it, we're just at the start of the same quest again.
I’d argue that the “great challenge” is developing a system where the user doesn’t become sweaty or get a headache after a few hours.
There were a bunch of movies in the late 90's about reality being virtual (the matrix, the 13th floor, existenz), but somehow it was the one without VR that was the most prophetic (the truman show).
I love my vr headset, but putting it on is already too much of a hassle to do regularly. Asking me to put something sticky on my hands? Forget about it.
As a father, I stopped reading right here. You can't treat your child like this, please don't.