As you may know, the hashing operation behind bitcoin is essentially the same that’s used to crack passwords. If you have a mining farm that can make a lot of bitcoins, you also have the hardware to open up, for example, encrypted databases.
So, bitcoin has no use, but states are absolutely interested in a computational arms race. That’s why I’m so intrigued by China’s turn on bitcoin. I saw some destruction of shitty GPU rigs, but I wouldn’t be surprised if China is just steering themselves out of bitcoin and organizing their mining capabilities. I’m thinking of that hydro electric dam, probably some secret ASICs too.
A player as big as that could take advantage of a time like when the difficulty doubles again and miners drop out, or some other opportunity in order to perform a double spend attack or just splinter the blockchain into a confusing mess.
Name a better targeted, more humane weapon. “Thousands of 36 year old white men are forced to stand in line to receive their temporary ape assistance. This aggression will not stand.”
I'm pretty sure China is just interested in stopping the blackouts that cryptobros were causing.