[themusicgod1]

> That's assuming your gateway has stellar on hand to provide as conversion.

That's not the only way that gateways can talk to eachother. Given this is ripple we're talking about, anyone who has a mutual trust connection between gateways can facilitate a transaction, as can any market-making trader.

Looking at MIRI's gateway and my own showed dozens of such connections. Ripple has 100,000 users, any of which can be part of the connection between any two given gateways. Stellar is planning on growing that large and larger, so it should be expected that this will happen there, too.