These are fiat points and I preach and speak that Bitcoin and Nostr have beautiful symbiotic relationshis. It's one of the key points of my talks that I give at conferences. I also state that they don't need one another, but when they do work together, they're unstoppable, because we can't truly transact until we can truly communicate. That said, for Nostr to be consider a layer, it has to be built upon a previous layer. That's how layers work. Nostr is not built in Lightning. It's a separate tool.