Come on, 'fess up--you've either fallen asleep during a presentation, or lulled others to sleep with yours.
According to a survey conducted by Immersion, a developer of data visualization software, 71 percent of the 382 polled said they have fallen asleep or been sleepy during an "uninteresting" presentation. 43% caught others dozing, which means they must have been awake, but not paying much attention.
There's nothing more difficult than sitting through a painfully boring presentation. The suggestions? Heavy use of graphics and animation, good use of data visualization tools--in other words, keep it interesting.
I remember one particularly painful presentation I sat through years ago. An unnamed semiconductor company was extolling the virtues of their multimedia roadmap. Did they use their multimedia capabilities to do so? No. They used overhead slides!
The fact is that the discussions regarding the most difficult technological concepts to grasp do not have to be boring. Lighten up, put action into that internal or external presentation, or at least elbow me gently if you're sitting next to me at a conference and my head falls forward…