Reader Comments

Speak and Inspire

by princy william (2019-04-30)


If you trust him (maybe because Speak and Inspire Review he never lies or maybe he is your intimate friends), then our story will be over here. However, the interest point will arise if you don't trust him. Then you begin to think how I can tell whether what he said is true or false?Surly, you can go to others to see if their answers are the same as his. But suppose the only person you can see is him (say if you are in an isolated island with him, I know it's very cruel to make that assumption) and you only have the two sheets of paper without any advanced equipment which can tell you the answer that you will completely believe. What can you do?My answer is use possibility to construct certainty. You should do the following things to get a possibility: choose one the sheets, say A and make a small mark on it, a mark that only you know it. Then you ask him which one is which. Let's say he told you A is red and B is green. After that you can either change the order of the two sheets or not. Because you know which is A and which is B while he doesn't when you ask him for a second time, you can immediately tell that he is lying if his answer contradicts with his previous one. However, what if his answer is not contradictory with the first statement (say if you change the order and this time he said B is green and A is red)? Can you say he is telling truth? He could but you are not feeling certain because he still has 50% chance to fool you (I assume he doesn't know the mark you have made). And then you do it again. If this time it's still not contradictory you are still not sure because he still has a 25% chance.What about 10 times? That is about 1/1024. What about 100 times? Obviously everyone knows no matter how many times you do that, there is still a chance, however small it is, that he can keep on lying to you but his answer can never be contradictory to his previous ones. That is what I mean by "theoretically". But I'm pretty sure if you do that for 20 times without any contradiction, you will believe he is not lying.Why? Because that chance is so small that you think it is equivalent to impossible. Actually here comes a leap from theory to application. That is, don't burden your thoughts or strategy with rigorous strictness based on pure mathematics. In reality, for most problems that confront us, there won't be any perfect solution. But just use the "from possibility to certainty" to tackle it! That is the real-life philosophy.

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