Absolutely valid and befitting point - adding complexity without clear benefits never should be justified. Most (business) applications have ruleset logic for s

Absolutely valid and befitting point - adding complexity without clear benefits never should be justified. Most (business) applications have ruleset logic for specific problems not exceeding a dozens of rules - regular code often works fine. Logic systems tend to show the value when rules become complex with many interdependencies or non-linear execution patterns emerge, or rules change frequently or need to be defined at runtime; when you need explanation tools - e.g., why was this conclusion reached?, etc. I agree, situations for when you need to implement a logic system are not extremely common, but maybe I just have not worked in industries where they are - on top of my head I can think of: factory floor scheduling; regulatory compliance (e.g., complex tax rules); insurance systems, risk-calculation (credit approval); strategy games; retail - complex discounting; etc.