> Now, not everything is discoverable. Only some things.

Both of Striking's examples are wrong though. The notification menu has an icon in the top-right corner of the screen (next to the spotlight one), click it to get the widgets/notifications; and OSX buttons still looks like buttons, they have changed look slightly (from aqua) and that's about it. Links have always been in OSX, usually for contextual linking.

They seem to know some iOS and assume OSX is the exact same, which it isn't.