The point is that unless you are in a specific domain where complexity is an unavoidable necessity (let's take 3D modelling as an example for arguments sake) le

The point is that unless you are in a specific domain where complexity is an unavoidable necessity (let's take 3D modelling as an example for arguments sake) learning a UI, especially when it is a upgrade of a familiar product, should be a simple task of augmenting existing knowledge with a relatively small amount of discovery. I would argue the ribbon menu largely achieved this, Win8 in my opinion absolutely does not. So much so companies are preinstalling 3rd party addons just to get it to a state where people know how to achieve the simplest of goals.