We still have to pay for food, shelter, transportation, clothing, and other physical things.
Our inner world is richer, and we consume non-decreasing goods. But everything is tied to something in the physical world, even if it's the hardware and energy running it.
Right, which is why the "100% digital" world was just a thought experiment.... we don't live in that world, but we do live in a world where an increasing percentage of our money is spent on non-exclusionary goods.... that has to have an effect on inflation.
Our inner world is richer, and we consume non-decreasing goods. But everything is tied to something in the physical world, even if it's the hardware and energy running it.