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In spite of their bad press , WYSIWYG editors are n't just for HTML dummies : experienced designers use them too . It pioneered the use of crash testing , originally using corpses rather than dummies . At a recent conference here of the American Association for Artificial Intelligence , robots competed to rescue dummies in a disaster mock-up , while a robot named George greeted attendees as they arrived . It 's actually quite textbook romance for dummies . This increases the power of the empirical analysis and , by including year dummies , controls for the effect of unmeasured aggregate variables that cut across regions .