Everyone knows the two-handed, overhead cut is the building block for all great swordsmen!This guy apparently didn't know he was supposed to do practice swings--very specifically overhead ones--over and over until he somehow gets eye lasers and blasts out on his own.
There's a difference between solitary confinement and sensory deprivation, and Vsauce's video is really unscientific. There's plenty of ways to self-stimulate, especially in the conditions presented.There's a difference between self-isolation and solitary confinement. Were you locked in an empty white room for multiple weeks? Because it's not being alone that drives you crazy although not socializing for a very long time does have adverse effects on a human mind. It's having absolutely nothing to do. Having nothing to stimulate your brain. Just an empty white shadowless box. I recommend watching vsauces video about solitary confinement.