[0815test]

> Powerpoint didn't stop NASA employees from asking "What are the chances of a catastrophic result?"

How so? The whole practice of using Powerpoint, whether in business, other enterprises, education or elsewhere is literally designed around its nature as a persuasion technology that makes true shared deliberation impossible, by ensuring that everyone in the audience has to expend their mental effort to focus on what the Powerpoint slides purport to say. Even Tufte is rather clear about this, and consistently critical about Powerpoint use. There is a very real sense in which Powerpoint stopped the audience from asking the right question.