A nostr-based peer to peer exchange is entirely possible. Might even be able to sort of get a hacky version of that out of my forthcoming project - Patron: "I want to buy sats for fiat, I have a credit card" - Arbiter/Escrow: "okay, I have a credit card processing app, I'll take your dollars and hold them" (maybe the Arbiter runs some ecash mints that make these kinds of swaps trivial) - Free Agent: "I'll sell some sats for that much fiat" (zaps this amount to Arbiter) - Arbiter checks everything, zaps the Patron, coordinates payment with the Free Agent, takes his small fee Of course this may be highly risky / illegal in a bunch of ways, and there are good reasons systems like RoboSats exist... But the basic, dangerous-mode mechanism could be easily supported by Nostr, and almost is already

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Ah hah, you've definitely found a good itch to scratch there. I can see what you're doing as being useful for a whole bunch of things once the parties involved are all satted-up, super interesting. Commissioning creators comes to mind. As for getting satted up in the first place, I'm with you on the risk element. Part of me thinks Primal’s solution, by means of which new users are essentially buying pre-paid zaps via Apple or Google, is the only on-ramp that won’t have an egregious drop-off rate. Like I was the head of Nostr marketing and growing the zap economy was my main KPI then I'd channel all new users to Primal. What they've got there seems to be fully-compliant, fast and clean. Single point of entry to the zap economy isn't so robust though.
Basically agreed with everything you're saying there! @npub1arcw...ggtw seems to be working on integrating bank/debit card payments right into their ecash wallet, which could subsequently be integrated into Nostr clients (nor NIP-60 maybe)... But I agree that "the most convenient UX always wins, broadly" even though that force has the unfortunate side-effect of sneakily entrenching "bad stuff" like centralization, custodians and rent-seekers. Got real deep real fast here, but I essentially see this small discussion as a shard of a much larger civilizational issue: can underfunded, principles-driven, decentralized islands build better "sovereign UXes" that outcompete (or at least keep pace with) hyper-(fiat)-funded, centralized organizations? In a nutshell, I think civilization and freedom depend on the freaks somehow pulling a win on this age-old battle. ...and unsurprisingly, I personally think Bitcoin is the ace in the sleeve of the freaks, if we can keep it (Benjamin Franklin style)