You'll always need intelligent humans using your product to tell you what to optimise for. An optimisation is almost always a trade-off and you'll need your end

You'll always need intelligent humans using your product to tell you what to optimise for. An optimisation is almost always a trade-off and you'll need your end users to tell you what's ok to sacrifice. For example, I expect my mum would trade about 50% of the processing power of her phone to get 10% more battery life, but the most important feature of her phone right now is that it's white so it's easier to find in her bag. My point is that you can't just tell a machine to go optimise. You need to tell it what to optimise and that's often a complex indeterminate culturally specific interaction between poorly defined attributes.