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The Truth About 20-Sided Dice:<\/b><\/a><\/p><\/blockquote>\n
There are a limited number of \u201ctwenties\u201d in any given d20. That is, no matter how many times you roll a d20, you cannot roll another twenty once the supply has run out. These twenties can only be replenished by rolling a corresponding one with the same die. Thus every gamer is duty-bound to protect their supply of good rolls. If a friend rolls a twenty using your die, not only have they stolen your good roll, but they have doomed you to the extra one required to replenish the twenty. <\/em><\/a><\/p>\n
Some players get excited when they roll several twenties in a row, concluding the dice are \u201chot\u201d. Don\u2019t make this blunder! This is like driving your car for 400 miles without gassing up, and then concluding that your car is a perpetual motion machine. After a few good rolls, pass the die off to an unwitting companion and let them charge it up for you.<\/a><\/p>\n
Statisticians have known about this behavior for years. They call it \u201cthe probability seesaw\u201d. Unlike the bell-shaped curve, in the seesaw system the odds of rolling high or low is directly proportional to what has been rolled in the past. They usually pretend this isn\u2019t true. If a statistician hands you a die insisting that \u201cany given roll has the same odds of rolling a one or a twenty\u201d, it means he\u2019s handing you a depleted die in the hopes of taking advantage of you<\/b>. Don\u2019t fall for it!<\/em><\/a><\/p>\n
Now the secret is yours. Please put this knowledge to good use*<\/sup>.<\/a><\/p>\n