mleku on Nostr: asynchronous payments lightning is synchronous you can't send to someone's LN address ...

asynchronous payments

lightning is synchronous

you can't send to someone's LN address unless there is a server answering there

ecash lets you send a payment like lightning except that it's less anonymous (to the mint) without the recipient being online

mutiny, and some other projects are using this as a bridge to cope with intermittent connectivity for non-custodial lightning payments