Reasons to hate PowerPoint

I had one bad experience with PowerPoint presentation in China. A distinguished astronaut visited our school and gave the lecture on the basic knowledge of astronomy. Astronomy is a topic that is very easy to evoke the interest with some fabulous pictures and interesting facts. But he designed his PowerPoint to be filled with words. The auditorium was giant and I sat at the last row, so I could see none of the words. He read through the PowerPoint with his thick Northern accent. 

The top sin of PPT is the design that is filled with words and charts. The audiences cannot decide their attention focus on the speaker or the large amount of information in PowerPoint. 

Secondly, the standard of PPT's quality depends on its use. In the case of the class presentation, the oversimplified PPT could not offer enough information that help students review. 

Thirdly, some speakers change the slides too fast and the audiences often cannot finish the reading in the slide before it is switched.