Let's use nostr:nprofile1qqsvf646uxlreajhhsv9tms9u6w7nuzeedaqty38z69cpwyhv89ufcqpzamhxue69uhhyetvv9ujucm4wfex2mn59en8j6gpzemhxue69uhhyetvv9ujuurjd9kkzmpwdejhgqg5waehxw309aex2mrp0yhxgctdw4eju6t0t25cfd as a concrete example. If you punch his npub into castr dot me and add the RSS feed to your podcast app, you'll see something like this: 
Discussion
It's all very simple, and as a content consumer it's very convenient.
As a content creator you can in theory create a Podcasting 2.0 podcast with show notes and value splits and everything, without having to deal with the feed creation yourself. You just post to nostr, and that's it. That's what I tried with nostr:nprofile1qqsfhhjzzjgl86k34ssm68gpvea2h9rlfswy4mv8vfx0yfemqm9q22cpramhxue69uhkummnw3ezuetfde6kuer6wasku7nfvuh8xurpvdjszrthwden5te0dehhxtnvdakqzrmhwden5te0dehhxarj9ekk7mgmkwtv0 & while imperfect, it's already working.
https://castr.me/npub1n00yy9y3704drtpph5wszen64w287nquftkcwcjv7gnnkpk2q54s73000n
Very clear! Now I understand.
How cool 😍