there are only 6 billion people in the world...

say on average everyone in the world knows 100 people...

that means each of the 100 people i know know 100 people each who know 100 people each who know 100 people each...

100x100x100x100x100x100= 1 trillion

now of course you have to account for overlaps and stuff but there is still a LOT of wiggle room...

the theory is definitely plausible...you probably could trace yourself back to most people...like high 90%'s...within 6 degrees of seperation...

the reason it seems impossible is because youd have to know ALL 100 people that your 100 friends each know and blah blah blah...its too many people for you to visualize...

but i could buy into the theory...

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