It's difficult, but not impossible. I could reasonably prove to a court I've never been to Jupiter, or that I've never been President of the USA, etc. I can de

It's difficult, but not impossible. I could reasonably prove to a court I've never been to Jupiter, or that I've never been President of the USA, etc. I can definitely think of situations where someone could likewise reasonably prove to a court they've never heard a song (e.g. they're deaf) or their "AI" had never heard a song (e.g. showing the training data).