May be a little OT but came across this technique called MABs multi armed bandits , related to , finding optimal ways to decide among a sequence of actions and measuring their utility

https://en.m.wikipedia.org/wiki/Multi-armed_bandit

Has applications in a wide variety of fields : optimal design of clinical trials, public policy decision making.

apparently has some relation to the work abhijit banerjee & esther duflo, the nobel prize winning economist couple have done on design of experiments, to measure impact of developmental interventions