There is “China cracking down on Bitcoin” news about every 6 months dating back to 2017.
There are 10K BTC nodes spread out across the world (including my house). Mining is concentrated in low-cost electricity areas (i.e. China excess hydro). China currently at 65% of hash rate worldwide and I doubt that the CCP will want give up the revenue from it (they may “nationalize” tho.). If so Iceland (or Texas) will pick up the slack.
https://chainbulletin.com/bitcoin-mining-map/
https://bitcoinmagazine.com/business/texas-a-mecca-for-bitcoin-mining
(2017) https://www.cnet.com/news/bitcoin-takes-a-hit-as-china-bans-digital-tokens/
Video Simulation after 3 Gorges Dam Collapse
Vid is from July 2020. Could this be a planned event? I've heard evacuations are ongoing, and a professional simulation and resulting youtube vid can only facilitate that.