7 -- lucky number or .... ?

Baelgun
Is 7 ~really~ a lucky number? Two thoughts on the subject

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ONE
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There are a number (sorry) of reasons... some lost in the mists of time and some more reasonable as an explanation... here are a few:
Number seven, a very cabalistic and used number thru history, is considered lucky among other reasons for being the number of perfection.

God, the Bible says, created the Universe in 7 days. Thus 6 is the imperfect number, this is why 666 is the number of Satan or the Beast.

On dices, where seven is a winning number, to get a 7 you need one dice on 6 and a 1 on the opposite side on the other dice. All opposite side numbers adds to 7.
Pythagoreans called it the perfect number, 3 and 4, the triangle and the square, the perfect figures.

Seven ancient planets - the sun was the greatest planet of the ancient seven and next to the sun, the moon, changing in all its splendour every seventh day. Seven visible planets and luminaries (Sun, Moon, Mercury, Venus, Mars, Jupiter and Saturn). (Thanks to Superstitions)...

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TWO
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It goes back to the roman empire when dice were becoming a popular game. The romans thought that the chances of rolling numbers were like this:

2 can be rolled 1 way: 1, 1
3 can be rolled 1 way: 1, 2
etc.

6 can be rolled 3 ways: 1, 5; 2, 4; 3, 3
7 can be rolled 3 ways: 1, 6; 2, 5; 3, 4
8 can be rolled 3 ways: 2, 6; 3, 5; 4, 4

etc.

They were wrong. The actual chances are like this:

6:
1, 5; 2, 4; 3, 3; 4, 2; 5, 1 for 5 different ways

7:
1, 6; 2, 5; 3, 4; 4, 3; 5, 2; 6, 1 for 6 different ways

8:
2, 6; 3, 5; 4, 4; 5, 3; 6, 2 for 5 different ways

etc.

Well, when 7 came up more often than they thought possible, they assumed that the number was intrinsically "lucky." Actually, they just sucked at statistics.

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