TED Talks: The Official TED Guide to Public Speaking

by Chris J. Anderson

A great talk is both scripted AND improvisational. It is precisely like a great jazz performance: First, the opening and closing are always completely scripted; second, the general structure is fully determined before the first horn blows; but third, what makes jazz interesting and captivating is that in the middle of a tune there is always some point (or several points) in which the player can go off script and spontaneously create something that captures the mood of that particular audience in that particular room at that particular moment in time. The player can take a few moments to do this, but he must always know when to come home, and he must always know where home is. A totally improvisational talk is like free jazz: an utter abomination almost every time it happens. A totally scripted talk is like a classical music concert: intricate, deep, and flawlessly executed, but often predictable enough to put the audience to sleep because they know from the start that there will be no surprises.