3.2.5 Knock-down Knock-down refers to the situation when a speaker carefully builds up series of points, which main point and then knock them all down in a seem to oppose the single sentence. For example, "Of course, the experts said that a palm-top computer could never succeed. They did market research, which showed that people would just gimmick". They said its memory capacity would be too limited for serious business users. And they did feasibility studies, which showed that the keyboard would be too small for even the fingers of a five year old! So, how come it sold more than a million units in its first year?