ARM4SNS:Reputation Examples

Example

Consider the following situation:

Q: I only have a limited time budget to read books. So, in order to gain as much knowledge as possible about a subject XYZ, which books should I read? (I can't read them all due to lack of time).

A: Obviously, I do not know the books yet. So I can't decide based on knowledge. But I may have reputation information about the authors (how I liked their previous books, or, how people that I respect a lot liked their books in the past). Using this reputation information helps me in making a decision. There is no proof that my decision will be right, but it will maximize the knowledge that I can obtain within the bounds of my time budget, given that I have no further knowledge.

In summary, reputation is not knowledge, it is less than that. But it is more than knowing nothing. Hence, a possible pseudonym for reputation might be half-knowledge!?