T.X. Hamme calls them dumb-dumb bullets:
Every year, the services spend millions of dollars teaching our people how to think. We invest in everything from war colleges to noncommissioned officer schools. Our senior schools in particular expose our leaders to broad issues and historical insights in an attempt to expose the complex and interactive nature of many of the decisions they will make.Unfortunately, as soon as they graduate, our people return to a world driven by a tool that is the antithesis of thinking: PowerPoint. Make no mistake, PowerPoint is not a neutral tool — it is actively hostile to thoughtful decision-making. It has fundamentally changed our culture by altering the expectations of who makes decisions, what decisions they make and how they make them. While this may seem to be a sweeping generalization, I think a brief examination of the impact of PowerPoint will support this statement.
The last point, how we make decisions, is the most obvious. Before PowerPoint, staffs prepared succinct two- or three-page summaries of key issues. The decision-maker would read a paper, have time to think it over and then convene a meeting with either the full staff or just the experts involved to discuss the key points of the paper. Of course, the staff involved in the discussion would also have read the paper and had time to prepare to discuss the issues. In contrast, today, a decision-maker sits through a 20-minute PowerPoint presentation followed by five minutes of discussion and then is expected to make a decision. Compounding the problem, often his staff will have received only a five-minute briefing from the action officer on the way to the presentation and thus will not be well-prepared to discuss the issues. This entire process clearly has a toxic effect on staff work and decision-making.
Edward Tufte made this point earlier, after the Columbia space shuttle disaster:
Serious problems require a serious tool: written reports.