 A standard assumption in developmental psychology has been that something important happens in the normal pattern of child development somewhere between the ages of 3 to 5. These are the ages around which FB understanding is usually thought to be acquired by most normally developing children (Astington 2001; Wellman &amp; Liu 2004). Indeed, for many, the passing of FB tests is thought to tell us something important about a subject’s ToM abilities. Some hold that success at FB test is the mark of a subject having acquired the final component of their mature ToM. The tacit assumption made here is that children put the finishing touches on their FP competence by mastering the concept of belief.