What is a dollar worth besides what it can purchase?
Put another way, if the number of dollars is constant in your account between today and tomorrow, but you can purchase less with it, you've lost wealth.
Put another way, if the number of dollars is constant in your account between today and tomorrow, but you can purchase less with it, you've lost wealth.
The only time I see that it wouldn't be true is if there was risk in carrying it - taxes, negative interest rates, or theft. I could see for example a tonne of gold tomorrow being more valuable than a tonne of gold today since you'd have to deal with storage and security and such.