## [October - Anyone Seen Tether’s Billions?](https://knowen-production.s3.amazonaws.com/uploads/attachment/file/5581/Crypto%2BMystery_%2BWhere_E2_80_99s%2Bthe%2B_69%2BBillion%2BBacking%2Bthe%2BStablecoin%2BTether_%2B-%2BBloomberg.pdf)
## May
[Bitcoin’s Troubles Go Far Beyond Elon Musk](https://www.newyorker.com/news/our-columnists/bitcoins-troubles-go-far-beyond-elon-musk)
**Recent moves by China have exposed the vulnerability of the cryptocurrency**.
[Musk added that these miners will ask their global rivals to do so as well, a development he dubbed "potentially promising."](https://edition.cnn.com/2021/05/25/investing/elon-musk-michael-saylor-bitcoin-miners/index.html)
## BCA research [The Crypto Impossibility Theorem](https://knowen-production.s3.amazonaws.com/uploads/attachment/file/5269/crypto%2Bimpossibility%2Btheorem.pdf)