>We could engineer general contentment for all without drug usage.

The idea that other people are engineering my contentment, is a truly terrifying notion.

I imagine this technology will predominantly be used for increasing the effectiveness of ads by attempting to put pixels in front of your face that spike dopamine output and attempt to persuade you to pay for something to get another dopamine spike. Essentially creating the same effect, but in a more subversive manner than a consumed drug.