 Pitt’s argument runs as follows: Normally, we can consciously, introspectively, and non-inferentially (1) distinguish an occurrent thought from other mental states, (2) distinguish an occurrent thought from other occurrent thoughts, and (3) identify which occurrent thoughts we are thinking. Pitt considers various explanations of these abilities, and argues that the only plausible explanation is that thought has a proprietary, individuative, and constitutive phenomenology. Thought’s proprietary phenomenology explains how we can tell the difference between thoughts and other kinds of mental states, thought’s individuative phenomenology explains how we can tell the difference between one thought and another, and thought’s phenomenology being constitutive of its content explains how we can identify which thoughts we are thinking. 