1. Yes, but modified to comply with Austrian Economics principles.
2. The wholesale e-bills sit on Nostr, the retail currency format is a novel form of non-custodial e-cash.
3. Yes, but not "discount". Mint. We will explain more upon mainchain launch.
4. Not free banking in Selgin's sense. In Bitcoin/Bitcredit we want banks strictly only as intermediaries of 100% money, not as fractional-reserve issuers.