Dual spec please

I did to prove you lied. It’s really quite simple. You read the posts. You remember what you read. You put a few key words into the search engine at the top of the page. In this case “24 hour cool down” would easily either find someone who supports dual spec that introduced the idea of a 24 hour cool down or you’re lying. You could go to the longest thread on this topic, over 6k posts. Dual Spec.. please? If it exists it should be easy to find.