Regardless of the starting point, inflation can persist due to mass psychology. See the mass psychology experiment in the mid-1990s that worked!() to constrain

Regardless of the starting point, inflation can persist due to mass psychology. See the mass psychology experiment in the mid-1990s that worked!() to constrain inflation in Brazil. They did have to introduce a new currency that was pegged against the dollar (essentially). See: https://www.bcb.gov.br/en/monetarypolicy/realplan https://www.bcb.gov.br/en/monetarypolicy/realplan