--- a/slides/slides06.tex	Tue Nov 04 12:35:41 2014 +0000
+++ b/slides/slides06.tex	Wed Nov 05 12:01:05 2014 +0000
@@ -503,10 +503,11 @@
 \item this is pretty old work (in theory); seems
   little used in practice (surprising)\bigskip
 
-\item for use in privacy the incentives are
+\item for use in privacy, the incentives are
   not yet right\bigskip
 
-\item digital cash (Bitcoins are not yet good enough)
+\item most likely applied with digital cash 
+  (Bitcoins are not yet good enough)
 
 \end{itemize}