Why haven't we invented some kind of drug to increase well-being for everyone, rather than just treat specific illnesses like depression? Like a drug that disables the "hedonic treadmill" and just makes you feel above average happy and content, all the time? Sounds like the holy grail of tech. After all, everything anyone ever does is directly or indirectly for the purpose of increasing happiness. Why does it seem like no one is working on a shortcut toward that goal, despite it surely being theoretically possible?