Let`s use a little estimation here. 8x6 is around the 99.6 (give or take 0.05) percentile so 11 inch cocks should be around the 99.9999 percentile (for 100000 people = one 10+ inch cock) with a liberal estimation.
Let`s say that`s true, then we had, since 7 billion : 700000 = 70000, around 70000 10+ cocks. Now, personally I`d rather cut a zero, but from the math alone there should be between 70000 and 7000 cocks bigger than 10 inches on this planet. Naturally born that is.
The only question is, if the math holds true, but there have been weirder mutations.
Of course men tried to change their size for ages, so it`s not unreasonal to belive that there people out there, who got a monster between their legs. In one case I remember a guy from thunders who used 75 lbs for hanging and made huge documented gains even above 10 inches, maybe I can find him again ....