Reading the book, not sure i was right about sets in previous post.
@MRiGnS: Could be true, but that case in unargueable. Thinking about it, how did you arrive at this conclusion?(as in events, not as in logic) Considering that learning is being argued the learned, by another person or by reality, it would seem to me that such a thought just pops into existence.
In discussion, one could, instead of assuming logic, decide that communications can either bring over a point to people or not. People can decide for themselves what points and how to communicate. Other people can think whatever they think about it. Only thing is that, if people select things, it becomes more like a popularity contest. On the other hand, logic just happens to convince people, but has no special place except in the minds of the people. (damn i used logic in this statement )