Add more text to 1c

wk11/week11.tex

@@ -106,7 +106,12 @@ world?}
 
 In cases where we are modelling systems over continuous time, then the
 clock scheme or random asynchronous updating would be appropriate to
-use. These might be systems like
+use. An advantage of these schemes compared to the other schemes is
+that they allow for more complex agents as not all agents are updated
+at every step. This means that many multi-agent systems would probably
+use such a scheme. A well known example of this would be ``Boids'', a
+simulation of flocking birds where every bird is evaluated as a separate
+agent.
 
 \section{Sensitivity analysis - critical mass in a
 nuclear}\label{sensitivity-analysis---critical-mass-in-a-nuclear}