Proof that PowerPoint makes you stupid

This is the PowerPoint diagram meant to portray US strategy in Afghanistan (Full story here). As you can read from the story, the US military spend a lot of time preparing these meaningless PowerPoint slides and then present them to the top dogs.

Which begs the question whether these slides are effective in winning the wars? Personally, I do not think so. In fact this could be one of the reasons why the US government made so much blunders in the Iraq and Afghan wars (wars that should not have happened in the first place) and made a complete fool out of themselves.