Add some notes.

niwinz · Jan 8, 2015 · 3ebb56f · 3ebb56f
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diff --git a/2015/oop-made-functional/content.adoc b/2015/oop-made-functional/content.adoc
@@ -376,6 +376,10 @@ But also:
 - You can dispatch by anything.
 - You can build adhoc hierarchies.
 
+Inconvenients:
+
+- has more performance implications than protocols (drasticaly improved in clojure 1.7)
+
 
 == Polymorphism: clojure approach (4)
 
@@ -463,6 +467,10 @@ Continuation...
 ;; => :unexpected
 ----
 
+- It also allows resolve disambiguations with `prefer-method`
+- It allows attach hierarchy a symbols and third party types.
+- It allows namespaced hierarchies with `make-hierarchy`.
+
 
 == End / Q&A