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Attacking bitcoin would involve the energy supply of an entire nation and a suspiciously large purchase of mining rigs.

• giantrobot 6y ago
  Ok. https://www.scmp.com/tech/policy/article/3005334/china-home-worlds-biggest-cryptocurrency-mining-farms-now-wants-ban https://www.scmp.com/tech/policy/article/3005334/china-home-...
  • kneel 6y ago
    If a country bans bitcoin then the mining difficulty will adjust and the hashing continues elsewhere. Much like other p2p networks, Bitcoin is a borderless hydra that simply cannot be stopped.
    • robjan 6y ago
      Rather than take it offline, another possibility is to size the hashing power and use it to undermine the currency.