Unfortunately, the PowerPoint has other functions that require some written text, namely, it may be the only record of your project that anybody receives or has access to. It will be e-mailed to the people who didn't show up for your meeting. Your boss might incorporate some of your slides into his own PowerPoint. You might have written a lengthy report, but nobody reads any more, and your report will end up in some forgotten place.

Many have been the times when I've asked: "Can anybody tell me what happened?" and all I get back is a PowerPoint. That's it. Better make it count.