Lol it takes less to raise the arbitrary fiat limit of Bitcoin than USD. 21M (really 2 quadrillion 100 trillion units) was completely arbitrary, it doesn't even appear in the holy white paper. You have 6, now 5 core developers with write access to the centrally hosted Github. Nobody has or will consider any fork the real deal. But all of that is beside the point. USD can keep expanding at the rate it has since the Fed was established in 1913 and it will take 1,540 years for sats to become as scarce as cents.