diff --git a/4 Qualifying Exam/2 Writing/2. QE State of the Art.md b/4 Qualifying Exam/2 Writing/2. QE State of the Art.md
index 83aa2b66..a6097200 100644
--- a/4 Qualifying Exam/2 Writing/2. QE State of the Art.md	
+++ b/4 Qualifying Exam/2 Writing/2. QE State of the Art.md	
@@ -44,4 +44,4 @@ This is useful for us. If we can find an uncertainty transfer function $W_2$ tha
 
 $\Delta$ is almost always considered a free variable transfer function. Since $||\Delta||_\infty < 1 \text{ } \forall \omega$, $\Delta$ will not decrease the minimum robustness margin. This is fine for developing a controller, but when it comes to actually verifying robustness of a controller implementation, $\Delta$ cannot be a variable. To create a plant to simulate a perturbed plant, $\Delta$ must have an expression. 
 
-**Limitation**: *There is no current method for creating random examples of $\Delta$.*   
\ No newline at end of file
+**Limitation**: *There is no current method for creating random examples of $\Delta$.* Because of this, it is not currently possible to test implementations of controllers against unstructured perturbations. 
\ No newline at end of file