Crypto-currencies and Bitcoin

Suggested Difficulty (Elementary etc): ____
Video or Audio: ____
Lesson Idea: Hi @Constance_Fang and Team,

Bitcoin and digital currencies (upper-intermediate to advanced)
Video or Audio

been there, done that:

Also check this post from a while back, really cool video about bit coin in China

Great stuff, thanks for sharing

You are welcome. You might like this too:
https://www.chinesepod.com/lesson/digital-currency-in-china