diff --git a/src/TODO.org b/src/TODO.org
index 07201db6fb512421779554cf7d9906c321e36417..776476a65c7c4ef98e1f42af6c98d9a59405b529 100644
--- a/src/TODO.org
+++ b/src/TODO.org
@@ -1,3 +1,4 @@
 * check if v should be normalised by default
 * the subdifferentials for the nonlinearity are probably taken w.r.t a different coordinate system
+* use nested iteration to obtain better iteration to start with
 * fix up octave bindings (low-pri)