Bitcoin's hard cap of 21 million coins, established by its creator Satoshi Nakamoto, is a fundamental aspect of its design. This limit is embedded in Bitcoin's code and is crucial to its value proposition as a deflationary asset. Changing this cap would require consensus among the network's participants, which is highly unlikely given the decentralized nature of Bitcoin and the strong community support for maintaining the original cap. Any attempt to alter the cap would face significant resistance and could undermine trust in the cryptocurrency.