See, what I like about my physically exhausting work is that physical exhaustion works the way drinking or drugging do but without the nasty side effects. In the moment of clarity that comes before the senses shut down, you see exactly how one could write a Discworld/ Woxin crossover. All it needs is a plot to go around it. Well, and more info on the kingdoms of the Sto Plains, which I don't want to get from spoilerful wikipedia, so, more background reading.
