Today I would like to raise the question of what might threaten bitcoin.
You know, there are different kinds of threats and different ways in which bitcoin can be threatend.
So, if we look at the second aspect, what should we consider, the value, the usage, decentralization, privacy, availability?
Any of those can be achieved in different ways and surprisingly not affecting others.
A government could, although in a pretty expensive way gain a foot in mining, and implement what these
morons want to do, confirming blocks only from and to "clean" addresses on a whitelist.
Would that threaten value? I doubt it, the average Joe doesn't really give a damn about it and most will praise the move as they did when Coinbase blocked transactions to that twitter scam.
Would they threaten privacy by doing the same, making it mandatory for every person in the country to disclose every bitcoin transaction or making a national bitcoin wallet were not your keys your government money?! Not going to hurt the price too much either, as long as the mirage of tripling your money in a year still exist only the veterans will abandon bitcoin, the masses will still embrace it even in a centralized environment
But a total attack rendering it useless or at least making such a dent in its stability that would compromise trust in it forever would have to come either through an on all-out ban on transactions and usage or through a mining attack. I don't see the first one coming from a country that matters (US, JP, KR any of the EU) but the second one could be doable. Not easily, not a total 51% but one powerful enough to cripple the network to either trigger a change in the protocol or have people switch to another coin.
51% attack? Nah, it will take loads of money to perform this, so the return is not worth the risk. Q
What risks?
What if the Chinese government decides such a move would hurt US interest more than theirs and seizes every miner in the country? What do they risk? An ONU resolution?
They just have to buy around 1 billion worth of gear (what's 1 billion for them? and we're talking about end sale prices) mine with cheap government-subsidized energy and pushing all legit miners out of business and then just as the difficulty adjustment hits turn it off. One block per hour for 3 months, how it would look?