On: The Lightning Network: Turning Bitcoin into Money

[nailer]

> What other promising options are there?

Fast layer 1s.

That way I don't have to worry about integration between n layer 2s that my users are on (considering my users are unlikely to be on the same layer 2).

[kevinak → nailer]

No Layer 1 Blockchain can effectively scale to billions of users when you also take into account that you want the system to be decentralized.

In practice, for Bitcoin, there is only one real L2 and that is the Lightning Network.