Blockstream CEO, Adam Back, a key player in the development of technologies like the Bitcoin (CRYPTO: BTC) Lightning Network, said the apex cryptocurrency will have to reach $700,000 to outperform physical gold. What Happened: Back said on X, “Digital gold bitcoin will surely flip physical gold sooner or later; and probably this halving cycle. So within a year or two. Currently, it’d take $700k/BTC but it maybe partially a substitute (some people start selling gold to buy bitcoin crossing the market caps below that).” Back’s confidence in Bitcoin potentially eclipsing gold’s market cap within …