Volumes are mostly a function of leverage - see what Bitflyer's did last year when the FSA reduced max leverage from 15x to 4x on the 28th of May — link
The #LightningNetwork's theoretical throughput exceeds that of any "next-gen" #blockchain and even payment systems like Visa or Alipay. We've reached an inflection point where decentralized systems can outperform centralized systems. — link