diff --git a/README.md b/README.md
index 42039ad..7422670 100644
--- a/README.md
+++ b/README.md
@@ -37,3 +37,7 @@ I still cope with Pythons' differences to Ruby. That means by now you have
 to keep the script as a string and give it to `_`'s `to_be_exec()` function.
 
 Not cool, I know. I am working on it.
+
+In case you are wondering why functions like `to_i()`and `to_s()` exist in
+the module. They are already more or less similarly in Python itself. But
+I wanted to model the original modules' behaviour as far as possible.