Can ideas be stolen?

Let’s talk about AI trainers “stealing” people’s data or creations.

If your child sits in front of YouTube learning how to pair photons using Swain’s Wobulation Theorem, invents wormholes, and goes on to get mega rich by commercializing the process into a “travel anywhere instantly” business, do you say he stole his ideas from YouTube creators?

Going to the root: Can you own an idea?

And whether we deem it “right” or “wrong” to train an AI on publicly available data, I’m thinking it is and will continue to happen anyway. And maybe this practice will stimulate more support for questioning current beliefs and laws around intellectual property.