Nobody has figured out how to do this yet... nor should they have. You shouldn’t over optimize before you need to and you’ve seen where the real bottlenecks are

Nobody has figured out how to do this yet... nor should they have. You shouldn’t over optimize before you need to and you’ve seen where the real bottlenecks are. But now we need it, and we’ve seen where the bottlenecks are. New technologies and techniques will be needed to match Visa and Mastercard in speed and reliability.