Have you heard nostr:npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z talking about #nostr ? It simplifies the concepts, it's in Portuguese but it's really worth watching, turn on the subtitles.

https://www.youtube.com/live/205Hil1RA2I?si=zntegxUc35DVAu0A