What kind of process have to go through? Who make the final votes? I guess the change is similar to implementing BIP.
I heard many posts here said "Economic Majority" vote decides. Does this mean who hold the most bitcoins decide? Maybe not. I guess BIP is determined by Bitcoin Core developers, so the total bitcoin supply (21 million) is also determined by Bitcoin Core developers.
Also, the argument against the "Economic Majority" is it is often the case we can't find holder for the addresses with a lot of bitcoins. How can we contact them for vote?
Thank you indeed!
By economic majority, they do not refer to the people who have more bitcoins but rather to the nodes, one node one vote. If the nodes reject a change in the number of Bitcoins, it will simply create a fork that will take away a part of the miners and create a shitcoin like Bitcoin Cash or Bitcoin SV.
Seriously, I don't understand why you're asking this kind of question if the 21 million limit is what makes Bitcoin so attractive.