[ChuckMcM]

The fallacy here is "no one understands what the technology is". The research folks think they understand it enough to ask the question about the downsides.

I continue to scan research in this area because I know that at some point there will be a recreational drug equivalent that runs off batteries. That is going to destroy a lot of wealth in the underground drug business. That will cause some violent changes in society.

As for TDCS I expect it to move along to the point where this may be like a calculator, not "required" but an accelerator for people with ones.