satoshi's mined coin won't be spent, we can roughly say total supply is 20M.
One day it might be??
it could easily be spent.. satoshi could just donate it to a libertarian or charitable cause. we'd know who the recipient is, but not the sender's real identity.
think about it: you're satoshi and you're cautious about keeping your privacy.. you know that these BTC are sitting there doing nothing.. and it would be extremely difficult to get those coins out of your pocket, so you'd just donate it.
at least this is what i'd be thinking if i were satoshi.
