What if bitcoin gains much more value than you anticipate? So what happens when 1 satoshi reaches the price of 1 dollar?
What kind of arrangement is made if payment is requested as Cent? Can the bitcoin core be modified?
The only thing that could make it happen would be a collapse in the economy, something unprecedented. In this case there would be a chance that fiat currencies would lose much value, and people would migrate to a more efficient currency. But as we all know, the Bitcoin network is not yet ready to deal with such traffic.