I'm a big supporter of johns hopkins and maps who are doing hpsychodolic tests. I think as we move forward, it's becoming harder to predict how these technologies will be used. And i worry about replacing opioids with brain stimulation can happen. But at the same time, you'll be able to create a piece of technology that you can sap your brain at home - which could lead to addiction. This revolution is coming right this is the third wave of industrial revolution,. That's awesome but also scares me because it puts the powerful tools of science into the hands of the citizens.