Some might say that BTC is already centralized; sure, but it has a unique feature "YOU CAN'T PRINT MORE"! TPTB certainly know this much and probably they're en route incorporating as a global reserve currency as we speak.
(Colorization mine.)
(Changes added.)
An additional (cryptographic) currency would inflate a cryptographic "basket currency" upon the former's inclusion into the latter like a particle with
positive mass "inflates" (i.e., expands the
Schwarzschild radius of) a Schwarzschild black hole.