We're learning more about the craving that fuels self-defeating habits
tl;dr the thesis is that addiction is a learning process of reinforcing behavior->reward understanding. Targeted magnetic pulses look to be capable of altering the chemistry of the neural pathways where this understanding lives.The article also notes how increasingly more behaviors are treated as addictions. Korea provides government subsidized gaming addiction treatment, which I think is interesting to consider if we are physically altering destructive behavioral patterns to reprogram people
 Where will the limits be? Might a workaholic be treated? What about junk food, smart phones? An adolescent with a history of getting kicks out of tormenting others? Fanatical racists or nationalists?On another note, there are other theories about addiction to supplement this one: https://m.youtube.com/watch?v=ao8L-0nSYzg