This leaves me with a very hypothetical question, what if all btc is burned (or lost)? After all 21m btc has been released, the number can only go down, right? I understand it would take an extreeeemeeely long time, but could humans run out of btc after enough burning? What will continued btc burning do to the economy over time? Is this something that Satoshi Nakamoto considered?
I can't imagine how expensive Bitcoin is at that time when it's running out of the market cap supply.
But that's very impossible to happen, it's a cycle process, miners will mint a new form of Bitcoin and sell it to the market, and the circulation of Bitcoin will still go on even though others are storing the value of Bitcoin.
I suggest to OP don't scratch your head thinking that far, we know that's most likely to happen and we even don't know the exact time frame that Bitcoin all mined.