When I calculate correctly every person on this world could own 260000 staoshis in average, if all bitcoins were mined and the world population is about 8 billion people.
That does not sounds much at first, but of course a satoshi would be worth much more than today, lets say one dollar.
When a transaction has fees of 10000 satoshis, who would pay that?
Nobody I guess. That's why I say there are way too less satoshis to make bitcoin function as a global currency.
not everybody in the world is supposed to have bitcoin!
and this will never happen either. you have to always think based on some reality. and for the realistic number of people who will ever use bitcoin, I say it is more than enough coins.
and if needs be, this number can be increased if the lack of enough coins were felt.