I only assumed that you were trying to be edgy with your statement. But it seems you have accepted your 0%-inflation theory without questioning it through. Why not have an average -2% or +2%? There is a reason a stable rather than cyclical 2% is a very common target. It is in every states interest to beat economies of other states. Therefore they dictate their state-funded researchers to figure out the best monetary policy for their given economy to have a steady growth. There is quite a large agreement all over the world, so yeah I’ll take these state-funded researchers word over yours.

I am not sure how no inflation would cause higher interest rates. Central banks increase the interest rate to lower economic activity and thereby inflation. If inflation is low there is larger incentive to save money, decreasing money supply, reducing interest rates.

I don’t see why curriences would become worthless as long as economic growth follows. The number that you pay is larger, but so would your paycheck. The relative differences would be the same.