Time and money
Time is not easily measured in money. It’s rather money that can be measured in time.
Time is not fungible, money is. Yesterday’s missed opportunity not necessarily comes back today, even if you have all day. Everyone has their own money, but timeline is shared by all of us.
You can buy some time with money, but that will be different time, not the one you want to get back. Good thing, though, you can buy money with time and that will be the same money.
Turns out, it’s more accurate to say “money is time”, not “time is money”. Because making money always takes time, while some time cannot be bought back with any amount of money.