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OK, I'll go one step further. I'll personally paypal $20 to the first person who can name a specific number (not an algebraic equation) that is greater than 0.99999~ and yet less than 1. Th algebreic formula of (a + b) / 2 will not come up with a number between a and b if a = b.

 Note...and I was implying this...a real number between the two is required.  In other words, something to prove that the two are not equal.