I think this may have been around time where folks in PlebLab started talking about Nostr, no? Or maybe the podcast is couple months earlier?

There's a slight chance that @npub1qkfnmpuz692azr8c5phn0930x2v92xyqvwgr6ve8znaa3qd6c3hq09ertp heard about Nostr at this point, but didn't pay too much attention? :)