diff --git a/Home.md b/Home.md
index 51dca95..c5c39b9 100644
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+++ b/Home.md
@@ -25,8 +25,18 @@ We can keep track of metadata constants in a separate class to not mess things u
 
 ![graph](img/module_example.webp)
 
+### RefCounted vs Objects
 > **Note** By not declaring an extent to a script file, it will automatically extend from [RefCounted](https://docs.godotengine.org/en/stable/classes/class_refcounted.html) type
 
+RefCounted delete itself when not used, opposed to the Object that stay until `free()` or `queue_free()`
+
+> **Game example**  
+> A sound created by a monster  
+> `Sound -> Resource -> RefCounted`  
+> When the sound is no longer in use it's going to automatically be freed.  
+
+For performance purpose, we will use a lot of RefCounted script, so that every time it's not used, it will be freed.
+
 
 
 ## Main classes