In fact, it did happen again, more than seven hundred years ago, when we lost contact with a system called Dalasýsla. This was before the local Flow streams were as extensively mapped as they are now. The Flow stream to Dalasýsla was apparently already collapsing when it was first colonized, it just took a couple hundred years to close entirely. Now, as it happens, the rest of the Flow streams in the Interdependency have been robust and mostly unchanged for the last several hundred years.”
