I noticed a lot of posts talking about sending signals to and from the brain that register like a dream state, but i dont think this will be successful if we go at it in this direction. Possible if we go at it in a manner to send and recieve live sensory signals, causes the brain to think we are in the virtual world when were not, the reason being. A thought occured to me, a lot of times, when people dream, the instant thay wake up from the dream either the recolection of the dream is completely lost, or fuzzy at best, so you would have good memory of whats been taking place while in the dive, but after you come out of the dive, for a lot of people a lot of the time at least, full or partial memory of what they did in the dive would dissapear. Unless someone is trained in the art of memory of the dream or to “lucid” dream, which for a lot of people either isnt possible, or would take a very long time. Plus in your dreams your not completely in control of what your doing, once again unless trained to “lucid” dream. So i would think it would require tech to read the brains waves, have amazing defences to hacking intrusion, and be able to send sensory signals to and receive from the brain, compute these signals, and be able to send them over the enternet in a manor that would show yourself in third person to other people instantly.