There are no words to describe the opposite sensations of being at-our-job and being not-at-our-job even if we know the feeling of crossing that threshold by heart. But the most essential quality that makes a job a job is that when we are at work, we surrender the power to decide the worth of what we do. At-job is where our labour is appraised by an external meter: the market. At-job, our labour is never a means to itself but a means to money; its value can be expressed only as a number—relative, fluctuating, out of our control. At-job, because an outside eye measures us, the workplace is a place of surveillance. It’s painful to have your sense of worth extracted. For Marx, the poet of economics, when a person’s innate value is replaced with exchange value, it is as if we’ve been reduced to “a mere jelly.”