That, apparently, is the number of blood cells that the Cord Blood Registry was able to capture from our young master’s U-cord. (The idea is that the stem cells in that blood can be used later in life if medical needs arise.) Apparently the registry was hoping for at least 100M cells but was able to store nearly 2 *billion*. Now, for all I know 2 billion is nothing, or maybe they always give parents these stats so that it sounds like your kid is a real champ (for all I know, they could tell me that his fan belt needs to be replaced and I’d probably buy it). Even so, it’s music to his new parents’ ears.