One thing to keep in mind is that most "scalable" apps (top 100 most popular websites like search, videos, social networking, forums, etc.) don't need double-sp

One thing to keep in mind is that most "scalable" apps (top 100 most popular websites like search, videos, social networking, forums, etc.) don't need double-spend resistant ledgers. They just need decentralized and cryptographically verified guarantees, like with what decentralized Reddit (notabug.io) and other apps, built on our system ( https://github.com/amark/gun https://github.com/amark/gun ), that is already pushing terabytes traffic weekly in production. The future for scaling is more about working around double-spend/blockchain than trying to make double-spend/blockchain systems themselves to be scalable (trying to do that would require violating various CAP Theorem / physics rules).