False. There is not regular ship traffic between the six continents. I believe Tom has said that they are to be treated as more like independent game worlds than as physical continents, or something to that effect.
Then how do nobles emigrate? Surely we aren't using star trek teleporters?
There is
some ship traffic between the continents. The continents are far enough apart that it's not feasible for an attack force from one continent to invade another--food supplies for a sufficient number of soldiers can't be carried along, so we know it's a very long distance. But the same ship that might carry a noble to a new life, can also carry nonperishables like silk. After all, you don't have to feed silk.
