Given any decision to be made, there are three possible decision categories, namely, a "right decision", a "wrong decision" and "no decision". Most people think there are only two; you're either right or you're wrong. As we normally do not know which is the right or wrong decision, the optimal decision is in fact "no decision" as this defers the commitment until we have more information to make a better informed decision.

However, if we observe the behaviour of most people, we notice that an aversion to uncertainty means people make decisions early.