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Lightning is live right now too, and has been for two years. The "ISP"-like (???) layer-2 thing you're referring to is just the fact that Lightning is decentral

Lightning is live right now too, and has been for two years. The "ISP"-like (???) layer-2 thing you're referring to is just the fact that Lightning is decentralized and also scales, which is probably why the author accurately claimed that it makes many-TPS blockchains irrelevant. ZK rollups are completely new and they do not scale nearly as well as Lightning, which performs at nearly 500 transactions per second /per payment channel/. So take the number of channels existing currently on the Lightning Network and multiply by 500 and you have a theoretical ceiling. It comes out to some multiple millions of transactions per second.

seibelj 6y ago
As a typical client, when using the Lightning network you open a channel with a peer, which requires an on-chain (slow) transaction and locks up funds. If you don't wish to do this with every single person you want to transact with, then you select a peer who is a major node (exchange, payment processor, etc.) who already has channels with the other major nodes. This will allow you to quickly route payments to anyone affiliated with the large network. This is why it is like an ISP layer-2 solution. IP packets route through the internet in a similar way.