I think you can chill out a little. These are volunteers and this is speculative research. And these people are already wired and receiving gross electric shock

I think you can chill out a little. These are volunteers and this is speculative research. And these people are already wired and receiving gross electric shocks to different nerve clusters in their brain to regulate epilepsy, so I doubt that more nuanced stimulation like this, is much worse, and may lead to new breakthroughs, and may turn what is a handicap, into a special abilility for these people. They are pioneers.