Autowiring - Rephrase aliasing when multiple classes implement same interface

Author: Plopix

service_container/autowiring.rst

@@ -365,9 +365,11 @@ Suppose you create a second class - ``UppercaseTransformer`` that implements
     }
 
 If you register this as a service, you now have *two* services that implement the
-``AppBundle\Util\TransformerInterface`` type. Symfony doesn't know which one should
-be used for autowiring, so you need to choose one by creating an alias from the type
-to the correct service id (see :ref:`autowiring-interface-alias`).
+``AppBundle\Util\TransformerInterface`` type. Autowiring subsystem can not decide which
+one to use. Remember, Autowiring isn't magic: it simply
+looks for a service whose id matches the type-hint. So you need to choose one by
+creating an alias from the type to the correct service id
+(see :ref:`autowiring-interface-alias`).
 
 If you want ``Rot13Transformer`` to be the service that's used for autowiring, create
 that alias: