Final answer:
Charlie mentions three different conceptions of reality in the interview: Reality 1, which is a singular objective reality; Reality 2, an individual's experience of Reality 1; and Reality 3, the collective beliefs about reality by different groups.
Step-by-step explanation:
Charlie introduces the idea that there are multiple worlds or realities during the interview. Specifically, he seems to be referencing three different meanings or concepts of reality. Reality 1 is described as the singular objective reality that could comprise all dimensions and universes known and unknown. Reality 2 refers to a person's individual experience of Reality 1, which is subjective. Finally, Reality 3 involves the collective beliefs about reality held by different groups, which can lead to multiple interpretations or 'realities' in the context of these beliefs.
Based on the provided information, there is only one Reality 1, which is singular and objective, but there are multiple instances of Reality 2 and Reality 3, which are subjective and vary from individual to individual or group to group respectively.