Proof-of-Stake (vs proof-of-work)

Cryptocurrencies use a ton of electricity because of mining. In recent years people started working on a different technique called Proof-of-Stake. Not only does it use less energy, it can also be more secure. (This video is a re-upload to fix a mistake I made in the previous one. Sorry about that!) 📚 Sources for this video:
https://www.savjee.be/videos/simply-explained/proof-of-stake/ 🌍 Social
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