> short, there are some big concepts like Christianity or Islam that people refer to as if it's the same thing but almost nobody has a shared meaning when they

> short, there are some big concepts like Christianity or Islam that people refer to as if it's the same thing but almost nobody has a shared meaning when they refer to such big things. Even so there can be concrete dialogues about these topics from different frames and with different underlying meanings. See Wittgenstein’s Philosophical Investigations for a deeper treatment of that topic.