Memorable. If your audience cannot remember what you said in your presentation or recall your idea, it doesn’t matter how great it is! Again, there are many techniques to communicate ideas in memorable ways, but my favorite is a concept I’ve discussed in an earlier column—the rule of three. Neuroscientists generally agree that the human mind can only consume anywhere from three to seven points in short term, or “working memory” (This is why the phone number is only seven digits. Long ago scientists discovered if you ask people to remember eight digits, they forget just about the entire sequence of numbers). The magic number—not too many and not too few—seems to be three.