How does Nostr handle large video files? Is the data download to our devices streamed simatanously from multiple relays, similar to Bittorrent? Do relays need to store the entire large video file, or can they choise to store small chunks of videos without storing the whole thing?

Maybe integrate Bittorrent into relays so the wheel doesn't have to be reinvented. 

 That’s one of the problems with Nostr - large video - either you self host, cross host (YouTube to an unlisted video) or pay nostr.build. Otherwise right now you just don’t get large video.