Clearly the feedback loop is too long currently. If we could instantly dispense diapers onto the baby as soon as it started crying, that would improve learning outcomes and encourage experimentation.
Babies who cry a little at a time will be awash with diapers, leading to secondary market opportunities. Now we just need a two-sided marketplace to capture that business and charge a modest fee.
Interestingly, there is an app, Chatterbaby [1], that claims to detect why a baby is crying based on the acoustic features of the cry. I've used it with middling success.
That'd be a neat integration: "Alexa, why is my baby crying?"
"Your baby is crying because you often raise your voice and make unreasonable demands of those around you. Would you like to add insurance for a lifetime of psychiatric help to your cart?"
This sounds like a joke but Amazon made a device specifically to listen to people talk all day and tell them how they sound to others. It is called Halo.