This post brings back so many memories as I remember the videos from that doctor in the runup to the pandemic. I found out about it on a Chinese US expat forum in late 2019. No one would listen to me here when I tried to warn them to prepare, so I stocked up myself. Dr. Li Wenliang saved countless lives and I'm forever grateful to him.
Concerning crypto and the complications (and fees) of moving money around using the SWIFT payment system when I travelled in 2017, would have been easier and cheaper than using that system. As long as you know what you're doing, crypto allows you to get things done and empowers the individual (which some people don't want).