[chrispedersen]

I dont' think thats exactly right.
There hidden resources available for each province regardless of whether there are units in queue or not- its these hidden resources that get tapped when you build a castle, for example.

I've never thought to look to see if that slave labor event was a permanent event, or a temporary one. I would be interested in finding out if this is a triggered event..

ie., is (unfinishable unit in queue) a trigger for event? I wonder what scale conditions are necessary for it.....