diff --git a/src/TODO.org b/src/TODO.org
index 60d0487bf28d112736443a676a2a0b165c8bb9f0..00cfe3b0848b0bb7371d93bc9439ffe5a11419ab 100644
--- a/src/TODO.org
+++ b/src/TODO.org
@@ -1,2 +1,3 @@
 * use nested iteration to obtain better iteration to start with
+* consider truncating only in tangential direction
 * fix up octave bindings (low-pri)