Thank you for that. I keep the line because it cost me a reader once -- he trusted 'free money', then I called bitcoin no safe thing and lost him at the door.
You're right about Celsius: they didn't break the tech, they held the keys and spent the trust.
Five plain minutes for people who have never held a key, no jargon, the risks left in:
https://telegra.ph/Bitcoin-anfassen-5-Minuten-10-09 -- tell me honestly if it's too soft for your crowd.