The question is. Do we have control over progress?
i think all what humans have invented until today is part of nature and evolution. We can plan our lifes, but we don’t have control over future.
Full-Dive VR will happen. It is just a bit more tricky to hack those fibers 2 cm burried beneath the skin almost non-invasively.(spinal cord).
Photoacoustic imaging in combination with wavefront engineering, adaptive optics will show us neural activity deep beneath the skin with high spatial and temporal resolution.
Just like astronomy used adaptive optics to cancel out our atmosphere medical imaging methods will make us of it.
We cannot forecast the exact date of Full Dive VR.
It doesn’t has to be 50 years away. Totally unreasonable. Why? Only because it is so awesome?
Our linear very risky assumptions towards progress are odd.