Worried about #bitcoin’s security after the h … Posted on March 11, 2020 (March 12, 2020) by mikee Worried about #bitcoin ‘s security after the halving? “the difficulty adjustment by design ensures that it is always profitable for someone to sell efficiently hashed electricity to the network.” @phil_geiger https://unchained-capital.com/blog/all-21-million-bitcoin-already-exist/ …