What do you think of having Nerve Gear in real life?

If such a thing is implemented, it has to be something that does not re-route signals received from the body, such as pain, so that if the body receives harm, the user will be forcefully ejected from the program.

That way, no 'death by sleep' can occur. Hope you got the reference.

Also, being able to move freely all the time is bad, but there should be functions to actively switch between your normal consciousness and the transferred version used in the software.

No idea how such a system would be implemented, even in theory, because what I'm asking (to me at least) borders on impossibility, due to the ludicrously large amount of electronic signals carrying data forced to transfer each time.

For such signals to be safely transferred between the human and system consciousness, it would be impossible if using hard-wired methods, because we are limited to 186,000 miles (approximated) per second, the speed of light, at best.

If only we already developed quantum computing, this would cease to be an issue, because there would no longer be data 'travel' but would be instantaneous 'teleportation'.

Not sure if those are the correct terms, but please work with someone like me who has limited knowledge in these fields, especially quantum computing, which I know nearly nothing of, aside from articles on the web.

Balance and equilibrium help us stay upright when standing and know where we are in relation to gravity. Our balance system also helps us walk, run, and move without falling. Balance is controlled through signals to the brain from your eyes, the inner ear, and the sensory systems of the body (such as the skin, muscles, and joints). This balance system is also known as the vestibular system.

In the inner ear, the balance system consists of three semicircular canals that contain fluid and “sensors” that detect rotational movement of the head. Each of the semicircular canals lies at a different angle and is situated at a right angle to each other. The semicircular canals deal with different movement: up-and-down, side-to-side, and tilting from one side to the other. All contain sensory hair cells that are activated by movement of inner ear fluid (endolymph). As the head moves, hair cells in the semicircular canals send nerve impulses to the brain by way of the acoustic nerve. The nerve impulses are processed in the brain to help us know where we are in space or if we are moving.

Located near the semicircular canals are the utricle and the saccule. The ends of the semicircular canals connect with the utricle, and the utricle connects with the saccule. The semicircular canals provide information about movement of the head. The sensory hair cells of the utricle and saccule provide information to the brain about head position when it is not moving. The utricle is sensitive to change in horizontal movement. The saccule is sensitive to the change in vertical acceleration (such as going up in an elevator).