Parent is certainly wrong about the details, but absolutely right about the challenges that cryptographic currencies face. Scaling is a huge issue that is very

Parent is certainly wrong about the details, but absolutely right about the challenges that cryptographic currencies face. Scaling is a huge issue that is very much an open question. If you're interested in scaling approaches, Vitalik Buterin has written a lot about this issue in a very thoughtful manner, both as it applies to Bitcoin and Ethereum.