Hey, So it's called the wall of rationnality... let's multiply 2 X 2 and continue x 2 and so and so... it will reach an exponential at some point... ( In mathematics, a power of two is any of the integer powers of the number two;[1] in other words, two multiplied by itself a certain number of times.[2] Note that one is a power (the zeroth power) of two. Written in binary, a power of two always has the form 100...0, just like a power of ten in the decimal system. wikipedia ) My question is what the biggest power of 2 ? hehe... There is a limit to rationnality... it's called the wall of rationnality... It can go further...