A trade so bad no bank would ever offer it to you

In finance there's a basic rule called the time value of money: a dollar today is worth more than a dollar next year, because today's dollar can be invested, spent, or grown, while tomorrow's dollar is just a promise. Every banker, every economics textbook, every retirement calculator agrees on this. So here's the question MJ DeMarco asks that almost nobody else does: if that's true for money, why don't we apply the same logic to time?

DeMarco calls the standard deal most people accept temporal prostitution: the habit of treating time as if it were unlimited and money as if it were scarce, when the truth is exactly backwards. Money can be earned again. A Tuesday cannot. And yet the accepted plan for most working adults is to hand over five days out of every seven for roughly fifty years, in exchange for two days of freedom and a hoped-for retirement at the end, if health and circumstance cooperate.

Run the numbers the way DeMarco does and the deal gets worse, not better. Trade five days of your life to receive two days back, and you haven't earned a modest return, you've taken a catastrophic loss, because the five days you spent are gone permanently. There's no compounding on time. No interest accrues on a Tuesday you sat in traffic. In the 2011 film In Time, which DeMarco cites, people have their remaining life visibly timestamped on their forearm, and work is paid not in cash but in additional hours added to that countdown. The story is fiction, but the discomfort it produces is the point: your own countdown is just as real, only invisible.

DeMarco divides your hours into two categories that matter more than any salary figure: free time, which nobody else has a claim on, and indentured time, which belongs to a job, a commute, or an obligation you didn't choose. Add up how much of an average weekday actually belongs to you once work, travel, and preparation are subtracted, and for most people the total free time left is measured in a couple of hours, squeezed in after everything else has taken its share. Temporal prostitution isn't a moral failing. It's a math problem most people have never been asked to solve, because the whole culture is built around not asking it.

Begin by tracking, for one honest week, exactly how many hours belong entirely to you versus how many are already claimed by work, commuting, and getting ready for both, because most people have never actually done this addition. Once you have that number, start translating purchases into hours instead of dollars before you commit to them, asking how many days of your life a five-year car loan or a bigger mortgage will actually cost you in indentured time. Before signing anything that locks you into years of obligation, ask directly whether it defers your life to some later date or funds the life you want now. Then pick one block of indentured time you could realistically convert into free time within the next twelve months, and treat that conversion as the actual goal, not the paycheck attached to it.