diff --git a/README.md b/README.md
index 76943b8372..c2d5fee75c 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ Unlike Git, Noms is a database, so it also:
 
 Finally, because Noms is content-addressed, it yields a very pleasant programming model.
 
-Working with Noms is ***declarative***. You don't `INSERT` new data, `UPDATE` existing data, or `DELETE` old data. You simply *declare* what the data ought to be right now. Noms figures out how to translate those assertions into physical updates.
+Working with Noms is ***declarative***. You don't `INSERT` new data, `UPDATE` existing data, or `DELETE` old data. You simply *declare* what the data ought to be right now. If you commit the same data twice, it will be deduplicated because of content-addressing. If you commit _almost_ the same data, only the part that is different will be written.
 
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