Well, homomorphic encryption is becoming a thing, and secure enclave/TPM chips have been a thing for ages. What would it take to give some kind of AI hardware the ability to have "private thoughts", i.e. cryptographically impossible to go and look at, just like human thoughts are (for most intents and purposes)? Could we let it spend some time on introspection - burning thinking tokens into the black box?

I'm not saying we _should_, just putting the idea out into the aether...