Since launching the Bitcoin ETF, BlackRock has been educating investors about related investments. A 3-minute Bitcoin introduction video on December 18 mentioned, 'There is no guarantee that the supply of 21 million Bitcoins will not change.' This statement has made Bitcoin supporters uneasy and even raised doubts about whether BlackRock is laying the groundwork for possible future hard forks or modifications to the Bitcoin protocol.
I think this is overthinking.
1. Promoting fundamental changes to Bitcoin requires the support of 51% of the computing power, rather than just enough purchases by BlackRock to influence it.
2. This is not in the interest of Bitcoin holders; such fundamental changes pose a significant risk to Bitcoin and are fundamentally not in the interest of large players like BlackRock.
3. According to insiders, this statement is just their lawyer ensuring that if the community changes the cap number, they won't be sued.