Great article Andy, I wish more people would closely look at Charlee Lee's(inventor of Litecoin) modest proposal on how to solve the scaling issue working alongside Litecoin itself. Lightning networks, atomic swaps back and forth depending on network traffic, etc. I'm surprised how few people bring this up but this is what he is forging ahead with and convinced me that it was the right way forward: https://segwit.org/my-vision-for-segwit-and-lightning-networks-on-litecoin-and-bitcoin-cf95a7ab656b