Original sentence: Most national currencies are also guaranteed to be usable in certain cases, such as paying the taxes of that nation; bitcoins have no such guaranteed use.Others see it as a disadvantage, as a central bank can serve as a stabilizing influence and reduce exchange rate volatility.This geometric expansion, combined with the expansion of Bitcoin users, means that early adopters were able to "mine" more free bitcoins each than later adopters, and this trend will continue unless the number of users collapses.This lack of a central authority can be seen as an advantage, because inflation cannot be centrally manipulated to effect redistribution of value from general users.Thus, later nodes are expected to depend on their ability to competitively collect transaction fees to process transactions, rather than relying on the incentive of newly created bitcoins ("mining") to record transactions into blocks.Unlike most currencies, Bitcoin has no central authority or issuer
Edited sentence: Inflation cannot therefore be centrally manipulated to effect redistribution of value from general users.Rather than relying on the incentive of newly created bitcoins to record transactions into blocks, nodes in this period are expected to depend on their ability to competitively collect transaction fees to process transactions.Unlike most currencies, Bitcoin does not rely on trusting any central issuer