Actually - we ALL are.
I have been doing our family genealogy for decades - genealogy is mathematical - the only true science that man cannot bend. So when it comes to our ancestors, each of us have the same number - It took a lot of people to 'make YOU" ;o)
Did you know that when you get back to your 10th great-great grandparents that you have over 4,000 in that one line - and that many in the lines from you to them ergo, over 8,000 DIRECT ancestors in just that far back - about to the late 1500's.
Since the number in each generation back DOUBLES, you can see how that explodes - just 5 more generations back and THAT line alone has over 130,000. Now, It is calculated that by the time we get back to the 33rd generation, every man, woman and child on earth will find common ancestors - ergo: we are ALL, literally, cousins. So why can't we get along! ;op) (I'm also a writer so when you scratch me with just about any word, I'm off and running. 
Now, you don't have to get very far back before you discover fascinating, and likely famous, people in your 'background. And in the search, you learn a lot of history. (But if you haven't been involved in genealogy before - be WARNED! It's addictive. But a great way to spend the long winter hours.)