>>13140938Communicating to another person about something being "real" has for a premise that we have a shared understanding that we are both in a plato's cave situation in which we live in a shared world that we get information from through perceptions that may or may not be trusted. To complicate the matter, when we communicate to other persons, we are basically trying to agitate a shadow in another person's view in the hope that he understand what we mean by the movement of this shadow.
When one says something is real, what is meant is that in the "thing" that cast shadows on the wall, there is a pattern, something predictable about the movements of the shadows. That is what we mean by "real", usually.
