Gold has retained its purchasing power despite 1-2% annual supply inflation for an extremely long time.
although its hard to assess the current valuation because the price is artificially suppressed with paper gold.
the only problems with gold are divisibility and transportation.
yes Bitcoin fixes those.
supply inflation isnt a problem that needs to be fixed.
arbitrary money creation by centralized parties is a problem that needs to be fixed.
the number of monetary units doesn't matter. as long as monetary policy is known and unchangeable, linear growth is better than a fixed supply.