What layer 2s currently exist on Bitcoin, other than lightning? Interesting interview with @jack Do layer 3s currently exist on top of lightning? ChatGPT deep research got me to the following list of layer 2s: - Lightning - Liquid - Rootstock - Stacks - Statechains I’ve only used lightning, have heard of liquid, but none of the others. Are there any other layer 2s gaining traction? What is cashu considered? I’ve heard @Jeff Booth mention Fedi - is this a layer 2? Any resources on these topics are greatly appreciated and will be zapped ⚡️ #asknostr #L2 #layer2 #cashu