Cool! Basically tether on e-cash. My guess is that exchanges will rug mints of their dollar balance, but that will have to be seen.

Can a DLC be sustained indefinitely? Presumably the mint would need collateral.

I would not be surprised if Tether ends up running a mint. Good way for them to acquire sats. 

 Yes, afaik DLC's don't have a mandatory lifespan. Any backend that can pay / receive on LN with a fiat balance would work (plus a bunch of other specific requirements). 

@note1eytfyxm8pqey67twfaja8g23djxj7wm4snwjxtun3rhqt77ghumq26crp0 

 Was trying to link to this nostr:note1eytfyxm8pqey67twfaja8g23djxj7wm4snwjxtun3rhqt77ghumq26crp0