JUST IN: COINBASE HEAD OF CRYPTOGRAPHY JUST SAID QUANTUM COMPUTING WILL FORCE #BITCOIN TO ABANDON ITS CORE IDEALS "NOT YOUR KEYS, NOT YOUR COINS" WILL NO LONGER HOLD WHEN QUANTUM ARRIVES, "THE PERSON WHO CAN SIGN IS NO LONGER NECESSARILY THE OWNER" "THAT PROOF OF OWNERSHIP CAN NO LONGER BE GUARANTEED BY THE PROTOCOL" "WHAT HAPPENS WHEN BTC NO LONGER SAYS YOUR KEYS YOUR COINS?" WE ARE NOT PREPARED ‼️