diff --git a/TODO.txt b/TODO.txt
index 1aaeba4..49d50a8 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -8,3 +8,4 @@
 - Recalculate next write locations whenever a write occurs, not at each read
 - avoid replay attacks
 - find a way to remove over-replicated chunks
+- formalize the chunk management policy