diff --git a/report.tex b/report.tex
index 79f2734..afc57df 100644
--- a/report.tex
+++ b/report.tex
@@ -230,6 +230,10 @@
     \begin{itemize}
       \item LISA is able to detect extreme mass ratio inspirals (EMRIs)
       \item Compare with perturbation theory
+      \begin{equation*}
+        \mu = \frac{m_1 m_2}{(m_1+m_2)^2} \rightarrow 0,
+      \end{equation*}
+      expanding in $\mu$ $\implies$ gravitational self-force theory
     \end{itemize}
   \end{frame}