There are numerous drugs which make people feel subjectively happy by changing the way their mind works, however from the outsider perspective the outcome is ha

There are numerous drugs which make people feel subjectively happy by changing the way their mind works, however from the outsider perspective the outcome is hardly desirable. People are inherently irrational just like the nature itself. It is possible to predict the probable outcome using mathematical models here and there, but the solution is always local and temporary.