diff --git a/README.org b/README.org
index 81074e1..1b13cb4 100644
--- a/README.org
+++ b/README.org
@@ -108,6 +108,7 @@ interaction with Org-mode.
 
 *** TODO Submit =update-graph= to =stchang=
 *** TODO Split =networks= into general networks and threshold Boolean networks
+*** TODO Consider optimizing the algorithms in =networks= and =dynamics=
 *** TODO Implement the BN \to RS conversion
 *** TODO Implement the minimisation of TBF/SBF
 *** TODO Contribute to Racket