RDF distorts an audience's sense of proportion or scale. Small advances are applauded as breakthroughs. Interesting developments become turning points, or huge leaps forward. RDF focuses less on outright deception and more on warping powers of judgment.
To quote some examples Mac followers know too well:
For example, when he revealed notepad and todolist (among other small improvements) the audience clapped like there was no tomorrow...
I was thinking the exact same thing... WWDC conferences Reality Distortion Field is an incredible phenomenon, truely wonderful for those under its spell, and creepy as hell to those left out. Other examples as the adding of 2 extra USB ports as a brilliant new idea, as well as... two optical bays?
(Source: Wikipedia Talk Page)
One more thing, this reality distortion field that Steve Jobs has when giving speeches (like this inspiring one) ... it is too good to be true.