Its kind of just.......reality.

We live in a deflationary world where all prices fall to the marginal cost of production.

Prices aren't rising, fiat is inflating.

Fiat currencies constantly expand, so if you use fiat as a measuring stick, of course it makes it look like everything gets more expensive.

If we all used gold coins and we didn't have to worry about the corruptibility of the custodians, you would be able to buy more movie tickets and hamburgers per ounce of gold as time moves on, technological innovation and hungry entrepreneurs competing in a free market drive prices down forever.