True Belief from an Overheard Conversation
Mehak, a Class XII student, wants to know whether the annual function has been postponed. Standing outside the staff room she overhears two teachers say, 'the 14th has been shifted to the 21st.' She asks no one else, writes '21st' in her diary, and tells about thirty classmates. What she does not know is that the two teachers were discussing the district athletics meet. As it happens, the principal had independently moved the annual function from the 14th to the 21st that same morning, and Mehak's belief is true. Her teacher, who knows both facts, says: 'You were right, but you did not know.' Mehak replies that she believed it, had a reason and was right, so the three conditions of knowledge are satisfied. A classmate adds that since the school circular confirming the change was later pasted on the notice board, Mehak's belief was reliable after all.
1. Test Mehak's belief against truth, belief and justification. Does she know? Explain, and say why the coincidence matters.
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Knowledge is standardly analysed as justified true belief. Mehak's belief satisfies truth: the function really is on the 21st. It satisfies belief: she sincerely records and repeats it. Justification is where the case fails. Her evidence is a fragment of overheard conversation whose content was about the athletics meet, so the reason she actually holds is false - the teachers were not talking about the annual function. Her belief is true, but only by coincidence: had the principal not moved the date independently, she would have been wrong.
On the JTB analysis, she had a true belief but her justification rested on a false step, so we should deny knowledge. This is the structure of the Gettier problem: justified true belief can be accidentally true. A defender of JTB might try to say she had some justification; but the justification she had does not connect to the fact that makes the belief true.
2. What would she need to add to have knowledge, and does the reliability of her source matter more than the content of her reasons?
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To have knowledge she needs evidence that is both true and appropriately connected to the fact: asking the office, reading the signed circular, or hearing the principal announce it. Two repairs are usually offered. The no-false-lemma response says the justification must contain no false step; her inference from 'the 14th has been shifted to the 21st' fails that test. The reliabilist response says a belief is knowledge if it was produced by a reliable process; eavesdropping on unidentified teachers is not reliable for this question, whereas reading the notice board is.
The two responses differ: the first looks at the content of her reasons, the second at the causal history of the belief. Mehak's case shows why reliability alone can seem too external - she could have been right by luck - and why pure internal justification can seem too weak, since her reason was internally reasonable but false.
3. A classmate objects: 'Her belief is true and she had a reason, so it is knowledge.' Construct the strongest reply.
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The classmate's argument assumes that JTB is sufficient. The reply is that truth, belief and a reason are not enough when the reason does not bear on the truth.
Use a parallel: a student believes the exam is cancelled because she misreads a notice about a holiday, and the exam is cancelled for another reason. She has true belief and a reason, but she does not know, because the connection is accidental. The Gettier problem is not a curiosity: it shows that knowledge requires an appropriate causal or evidential link, not merely the co-occurrence of truth and justification.
The classmate could rescue his claim only by widening justification to include reliability plus no false lemmas; even then he must show that Mehak's route satisfies the condition. The strongest reply is therefore to accept the three conditions as necessary but deny that they are sufficient, and to demand an account of what closes the gap.