Too Long; Didn't Read
Many online retailers now accept Bitcoin, and it’s rumored that <a href="https://www.cnbc.com/2017/11/01/amazon-buys-crypto-domains-bitcoin-ethereum.html" target="_blank">even Amazon</a> may do so next year. However for the foreseeable future Bitcoin will not be a viable currency, and it’s not because of issues around the size, speed, and cost of transactions. It’s because of Macroeconomics 101.