Your friend seems to understand the basics. It takes time for someone to internalize newfound knowledge. Perhaps teach him how to buy some satoshis self-custody into a Lightning Network wallet and how to buy something with those satoshis...simply sending a zap to a NOSTR note or to your video on NOSTR might be a good starting point.

Great video. Enjoyed the conversation. You can tell a few times when it clicks and he's impressed with the brilliance of the protocol his face lights up.

That is how my last 4 years have been 🤣