Disclaimer #1: the WordPress formatting has gone strange and no matter how many times I try, this comes out in all caps. I apologize.
Disclaimer #2: there are those who believe this to be totally hooey. This is because the Golden Ratio, usually simplified to 1.6180, is actually an infinite decimal, like Pi, meaning that it never ends, it extends into infinity. Therefore, some claim, nothing can truly measure up, so to speak, to the Golden Ratio, because said ratio can never be measured.
Now, I am not a mathematician; I am an artist. So my reaction to this argument is to shrug and say, “Meh, close enough.” If that sort of blasé attitude offends your mathy sensibilities, you should probably stop reading now.