If you watched Accel World (AW) and Sword Art Online (SAO) you must be familiar with terms like NerveGear, AMUSphere, Neuro Linker, Full Dive etc. This kind of concept is already started in real life like NeuroWear (a pair of wearable nekomimi twiches according to your mood) and brain-wave controlled robot as far as I know. In scientific view, this kind of concept devices is basically hacking into your brain; adding stimuli directly to your brain, phising data from your brain and also DDoS-ing (in other terms, blocking) your brain signal to your body. But the real current research still stuck only in one part that is receiving the data, not sending data to brain.
Before we go anywhere further, let's recap what AW and SAO is all about.
