Daniel (Danny) Hahneman, Amos Tversky * people have pre-conceived notion of "ideal" object and then compare the real object to this ideal to judge belonging. This comparison is not transitive Tel-Aviv is like New York * people tend to see patterns where none exist * people tend to generalize on small samples. * people tend to give more significance to the most vivid, most recent or most easily recalled events * people tend to construct an explanation (possibly after the fact) to the events and ignore the uncertainty * people remember the peak pain and the ending of the pain but not the duration * bias: systemic error * heuristics: - availability - resemblance