As we sailed into the new millennium, humans crossed a threshold never before witnessed in our species. We flew past the 6 billion mark in number. This is an impressive figure, but not one that we can easily appreciate, unless we are Bill Gates or ExxonMobil.
Let's try to understand how incredibly large this number is. Consider that this article has ~9000 letters. Thus, it would take more than 650,000 copies of it to produce enough letters to represent all humans. Or, put in other terms, consider that if all the humans were to hold hands side by side, our species would circumscribe the…
