It’s a welcome change from the rest of medicine that the brain seems to somewhat positively react to all sorts of random interventions: magnetic fields, direct

It’s a welcome change from the rest of medicine that the brain seems to somewhat positively react to all sorts of random interventions: magnetic fields, direct current, LSD, and now, apparently, ultrasound. While these experiments seem to hint at very specific mechanisms at work, maybe there’s also a general principle of (mild) change or challenge being supportive in helping a an errand brain’s active return-to-the-mean. Also please nobody tell DARPA about this. Agreed?