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In the fragile reality of Discworld, and with the gods who like to play games, a million-to-one chance succeeds nine times out of ten.

Traditionally, one has to say "it's a million-to-one chance, but it might just work!" to invoke this rule. It also has to be exactly a million to one - none of this fiddly "995,351 to 1" business, or whatever other number you might end up with. So while the list of things that people have accomplished with million to one chances is quite impressive, the list of things they have failed to accomplish with odds a few percentage points off in either direction is probably a lot longer and involves a lot more fatalities.

The deity of the Million-to-one chance (and all the other ones as well) is The Lady. Just... don't invoke her directly.

[edit] Million-to-one chances that came off nine times out of ten:-

The Great God Om in Small Gods:- "Landed on a pile of dirt in your garden. That's eagles for you. Whole place made of rock and paved with rock and built on a big rock, and they miss."

"That was lucky. Million-to-one chance!" said Brutha.

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