In my opinion, one of the most interesting economic questions about Bitcoin is the following: what drives voluntary money the most: scarcity, utility, network effects or trust?
I wouldn’t want to separate any of them because they all play important roles in taking Bitcoin to where it is today.
Scarcity comes from Bitcoin’s limited supply, and many factors help strengthen it, including lost coins and dormant wallets. People also trust that the system will continue to evolve over time, and that trust in Bitcoin helps drive its adoption on a wider scale.
As adoption continues to grow, these factors will continue to work together within the Bitcoin economy. Even after all the Bitcoin has been mined, they will still play a role, especially scarcity, which will become even more significant.
As demand continues to grow while the supply remains fixed, the value of Bitcoin could increase. People who did not trust the system before may eventually want to get their hands on even the smallest units of Bitcoin.