How close are we to Deep Dive/Full Immersion VR?

[Obsessed With Gaming]

Will it happen within our lifetime ( in 20-50 years)?

By using Elon Musk's Neuralink (Neural Lace 2039???) ,NerveGear, nanobots, mind uploading maybe?

And if we were to achieve this would anyone still want to live in the real world apart from people who are maintaining the system and certain religious groups?(or at least take breaks from full dive VR)

Also is this inevitable?

 

[0h_no_not_again]

Several decades if you're being very optimistic. 100 years feels more likely IMHO...

Don't work in prosthetics, but studied them under some MIT profs/post-docs:

• Nerves are high disordered and your brain does a lot of heavy lifting to turn this into useful information, meaning you can't just connect and array of electrodes to an array of nerves.
• Nerves are incredibly sensitive and fragile, where all implants to date damage the nerves. This means your nerve may not function post implant and it isn't reversible - no future upgrades!
  
• Your brain takes years to learn how to process the incredibly glitchy inputs, using sensor fusion to reject a hell of a lot of spurious information.

What this means is it is nearly impossible to break into nerves and inject electronic signals that the brain can properly interpret.

A good example is bionic retinas, which do not have high uptake as they tend to damage the nerves in question, and they don't really work very well.
People see randomly placed/spurious flashes of light all over their vision, so not really viable at this point. Bionic retinas are the most trivial bionic interface being attempted, so it just gets more difficult from there on out.