Final answer:
The statement that all worldviews are private is false; while worldviews have personal aspects, they are also shaped and shared communally within societies. A worldview can encompass individual beliefs, but societies often share common worldviews that influence collective behaviors and interpretations of reality.
Step-by-step explanation:
The question 'All worldviews are private. There is no such thing as a shared worldview.' can be answered as false. Worldviews are indeed personal in nature, reflecting a person's specific thoughts, cultural background, religious stance, and so forth. However, they can also be collective, as societies share common worldviews that affect how their members interpret information and act within their environment.
Philosophical discussions on the nature of reality and truth often suggest that while individuals may hold personal truths, for propositions there exists a single truth value. The belief that the Earth is either flat or round cannot be simultaneously true and false; there exists a factual correctness that transcends individual beliefs. Hence, personal or shared worldviews can encompass incorrect perceptions of reality.
Additionally, in social constructs, belief systems, and worldviews are not solely private. They can be communal, with many people within a society sharing and acting upon similar worldviews which are influenced by variables such as gender, age, occupation, education, and so on. This suggests that there are not only personal worldviews but also broadly accepted societal worldviews.