Hey Jack, question for you/ nostr:npub1ex7mdykw786qxvmtuls208uyxmn0hse95rfwsarvfde5yg6wy7jq6qvyt9 

When I transfer cash from my balance to another strike user, does a Lightning transaction take place within Strike’s system? 

Or is it just an “account balance update” until one of us sends to an external Lightning or on-chain address?

Or does it depend on whether they choose to receive the payment as Bitcoin or USD?