BlackRock has sparked controversy over the immutability of BTC in a new video, saying investors have “no guarantee,” which hits the key idea of a fixed limit that makes it inflation-proof
Theoretically, the limit could be changed through a hard fork, but such a network would no longer be considered “real BTC.” Previous attempts, such as increasing the block size in 2016-2017, failed due to disagreements in the community.
The discussions are related to the security model: miners’ rewards are reduced, and after 2140 they will receive income only from transaction fees.
However, investors are confident that any attempts to change the limit will lead to the creation of new networks, and not to changes in the original BTC.