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但實際上有知識的可能佔不到１半
答非所問。瞎扯鬼扯。比比皆是XXDD
Justified true belief is a definition of knowledge that is most frequently credited to Plato and his dialogues.[citation needed] The concept of justified true belief states that in order to know that a given proposition is true, one must not only believe the relevant true proposition, but one must
also have justification for doing so. In more formal terms, a subject S knows that a proposition P is true if and only if:
1. P is true 2. S believes that P is true, and 3. S is justified in believing that P is true
This theory of knowledge suffered a significant setback with the discovery of Gettier problems, situations in which the above conditions were seemingly met but that many philosophers disagree that anything is known.
[1] Robert Nozick suggested a clarification of "justification" which he believed eliminates the problem: the justification has to be such that were the justification false, the knowledge would be false.
https://en.wikipedia.org/wiki/Knowledge https://en.wikipedia.org/wiki/Plato
