Anon on Nostr: Full-Chain Membership Proofs (FCMPs) will replace rings in the Monero protocol to ...

Full-Chain Membership Proofs (FCMPs) will replace rings in the Monero protocol to significantly improve sender privacy.
FCMPs will prove the output spent is one of any output on the chain, effectively removing risks associated with rings.
This will increase the anonymity set from 16 to 100,000,000.

quoting nevent1q…pr6f

Monero vs Lightning (with bolt11 blinded path for the receiver)

Monero:
- Sender to know the sending address.
- The receiver knows that the sender is between 1 of the 16 addresses.
- Record is kept in the blockchain
- The amounts are hidden

Lightning:

- Sender does not know where the payment is sent.
- The receiver does not know where the payment comes from
- The amount of the payment and the receiver are encrypted.
- No record is kept in any blockchain

From here on there are many attacks that can be applied to Monero as well as to Lightning, but this is the initial situation.