How big is a billion? If you start counting and increment per second,it takes nearly 32 years (more than that) to complete. I think it's a big number for a prod

How big is a billion? If you start counting and increment per second,it takes nearly 32 years (more than that) to complete. I think it's a big number for a product to sell that much. If you consider the world population, that makes it even more dramatic. Big accomplishment.