diff --git a/wk11/week11.tex b/wk11/week11.tex
index 7f6743a..d93b62d 100644
--- a/wk11/week11.tex
+++ b/wk11/week11.tex
@@ -109,7 +109,12 @@ 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}
@@ -136,6 +141,6 @@ We take measurements of the energy released at densities of 0\%, 5\%,
 intervals of density closer to the density at which the maximum reading
 of the energy released exceeds 10.
 
-This breakout first happens at 12, and so we deem this to be the
-critical density of the system.
+We found that the hightest desity for which no breakouts occur  is at
+10\%. We thus deem this to be the critical density of the system.
 \end{document}