If theres only 21 million bitcoins, How many people can use BitCoin ?
Think about it, how many people do you figure are already using and trying to amass bitcoins? At least 500,000 by now if not more....
Thats only 42 BitCoins per person......Which sets a rather low transaction cap, about $1,500 at todays rate. assuming you have the max amount of bitcoins someone could have, if everyone had roughly the same amount of BitCoins.