- Why money is useful at the foundational level, and the characteristics of a currency
- Why the price of Bitcoin (and Dogecoin!) keeps going up
- Explanation of ledgers and blockchains
- How you would actually buy something in Bitcoin
- Where all this might lead in the future

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The corresponding blog post with links and images:

https://www.michaelcaloz.com/2021/05/04/cryptocurrency-part-2-how-crypto-actually-works-why-bitcoin-is-valuable-even-if-its-just-made-up-and-what-you-should-know-about-blockchains-the-tech-behind-them-and-how-they-could-influen/