If there is enough adoption 21 million coins is not enough to go around. ... If 21 million people were interested in bitcoin the price would easily head north of 4 figures.
I strongly disagree, for this simple fact: one satoshi carries exactly the same transactional capability and benefit to consumers/merchants as does one full Bitcoin.
People need to get over the mindset of $1/
BTC1, i.e., value being assigned in integer increments.
The current Bitcoin protocol provides for a maximum of 21M BTC x 100M sat = 2.1 QUADRILLION units of fungible supply.
BenYou're completely ignoring that it requires 100,000,000 satoshi to make up a full bitcoin all of which are limited. If you are ready to "get over the mindset" I will happily trade you 1 satoshi for your one bitcoin right now. I mean it's just a value being assigned by integer increments, right?