https://coinjournal.net/scaling-layer-2-and-cryptographic-innovations-discussed-at-consensus-2018/]
each channel can process about 500 transactions per second. With thousands of channels being utilized at once, Bitcoin could theoretically scale beyond not only any other cryptocurrency but any other payment method, including VISA.
In addition to the talk about scaling, Decker explained that using the lightning network would be impossible to track sending/receiving bitcoins, as long as the user has more than one open channel.
After all this, Bitcoin Cash fans are still surprised by all the positive about the lightning network.