Found out that: 1/(1-x) = the infinite product of (1+x^(2^N)) from N=0 to infinity. From "The Harper Collins Dictionary of Mathematics" by Borowski and Borwein. Makes me wonder whether this identity could be used to make some complex algebraic manipulations into real manipulations. And it has nice logarithms too. Yes, I have been reading the NewScientist article "Reality bits".