full-dive requires a basically 'perfect' BMI , ie the port from the matrix/cyberpunk/etc

we are probably at least 5-10 years away from this right now , but i can foresee more difficulties ahead , so i wouldnt be surprised if we're not as close as many would hope ; hopefully advancements in AI between now and 2030 can make drastic improvements in our understanding of the nature of the brain and how to design better BMIs

i suspect that full-dive is going to require a much more profound understanding of what our consciousness truly is ; and this is called 'the hard problem' for a reason

its one thing to put something over your eyes , its another thing to fall asleep and dream and then remember some of it when you wake up , its a whole nother game to basically turn off all of a persons physiological sensory feedback while simultaneously keeping them awake/conscious and then feeding their brain an entirely different set of parameters for sight/sound/smell/taste/touch/etc