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God may or may not exist, but the belief in his existence has been useful in the past, especially post-war period as a bedrock of American democracy and its economic progress. 200 years ago, almost every American believed in God and went to churches and synagogues (jewish churches) and believed that if you commit a sin, God will punish you. That was the bedrock of democracy, because everyone believed in fairness, so most of them lived honest lives and followed the law. They didn't need police to be around 24/7 to remind them not to commit crime. Today, of course the situation is different as more people are like you who don't believe in God. In normal times everyone can say "I don't need God, he doesn't exist, only believe in science" and all that, but imagine desperate times when you are at your lowest form and almost feeling hopeless, didn't you ever wish there was a "higher supernatural power" to bail you out of your shadows? After the11 Sept 2001 terrorist bombings, the number of church attendance around America and Europe surged. Why? In peaceful times, everyone like you can say "I Only Believe in Myself". Wait until you reach the verge of desperation & near hopelessness, who will you secretly cry out to? Religion is a kind of "belief model" to help people cope with reality. It doesn't matter whether it is true or false, right or wrong, but whether it is useful to help a person cope with his life. You don't believe is fine, but maybe it has been helpful for others. Think about that.
"Margin of Safety" as the Central Concept of Betting A team's past ability to create quality chances is the expected number of goals that they should have produced. The expected number of goals in excess of the actual number of goals constitutes the "margin of safety". The margin is counted on to cushion the bettor against discomfiture in the event of a performance decline in the upcoming fixture. The soccer bettor does not expect the upcoming fixture to work out the same as in the past. If he were sure of that, the safety margin demanded might be small. The function of a safety margin is, in essence, that of rendering unnecessary an accurate estimate of the team's winning probability in the upcoming fixture. If the safety margin is sufficiently large, then it is enough to assume that the team's upcoming performance will not fall far below their expected goals in order for the bettor to feel sufficiently cushioned against bad luck. The safety margin is always dependent on the odds that the bettor accepts from the bookie. It will be large in certain odds, small at some lower odds, and negative when the odds is too low. However, even with a safety margin in the bettor's favour, he may lose his bet. For the margin guarantees only that he has a better chance of winning - not that loss is impossible. Theory of Diversification There is a close logical connection between the concept of safety margin and the principle of diversification. One is correlative with the other. Even with a margin in the bettor’s favor, an individual bet may work out badly. But as the number of such commitments is increased the more certain does it become that the aggregate of the profits will exceed the aggregate of the losses. This point may be made more colorful by a reference to the arithmetic of roulette. If a man bets $1 on a single number, he is paid $35 profit when he wins—but the chances are 37 to 1 that he will lose. He has a “negative margin of safety.” In his case diversification is foolish. The more numbers he bets on, the smaller his chance of ending with a profit. If he regularly bets $1 on every number (including 0 and 00), he is certain to lose $2 on each turn of the wheel. But suppose the winner received $39 profit instead of $35. Then he would have a small but important margin of safety. Therefore, the more numbers he wagers on, the better his chance of gain. And he could be certain of winning $2 on every spin by simply betting $1 each on all the numbers. (Incidentally, the two examples given actually describe the respective positions of the player and proprietor of a wheel with a 0 and 00.)
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