A long-term asset like Bitcoin (CRYPTO: BTC) can survive a lot of scary headlines about the global economy, geopolitics, or the behavior of its biggest holders. But for investors to have enough confidence to actually hold it long enough to get a solid return, it probably can't survive having its core (and often unstated) assumptions broken. On that note, on Jan. 21, Coinbase (NASDAQ: COIN) said that it would form an independent advisory board focused on quantum computing as it pertains to blockchain secu ...