What it does to the work

The one thing the passenger was supposed to be good for was the job. Whatever it took from the evening, at least the work got something. This chapter is about whether it did.

Start with what the working-out produced. If you've been doing the paper test, you know. Most evenings, nothing. The rerun produced no line you used. The fret produced no step. The spreadsheet reconciled itself behind your eyes and was still wrong on the screen. The passenger's contribution to the actual work, on most nights, is zero, and on the other nights it's something you could have had in a booked half hour with a pen.

Now the other side of the ledger. Sonnentag's year-long study found that the people who left work at work were the ones who stayed engaged with it. Under heavy demands, detachment protected against engagement falling. The people who kept the job in their heads all evening were the ones whose interest in it wore down. Fritz and Sonnentag's weekend study found that what people did with the weekend predicted their job performance the following week. Wendsche and Lohmann-Haislah's pooled analysis linked detachment to better performance on core tasks. The job, in other words, gets more from a person who left it than from a person who didn't.

There's a mechanism I'd offer for that, and it's mine. Work needs a particular kind of attention, the kind that can hold a problem, try something, notice it's wrong, try something else. That attention is spent during the day and restored during the evening, if the evening's an evening. A person who spends the evening at the desk arrives with the attention half spent. They do the day on the remainder. The passenger is the job borrowing from tomorrow's attention to pay for tonight's fret, at a bad rate.

I said in chapter 9 that there's a small honest cost, and I'll repeat it. The pooled analysis found slightly lower creativity and slightly less going beyond the role among people who detached more. If your job runs on the idea that arrives in the bath, you may lose one now and then. But the ideas that arrive in the bath arrive to a head that's stopped fretting, not one that's mid-rerun, and I'd guess you've had more of them on holiday than on a Tuesday night at the desk.

So the passenger's case for itself, that it's for the work, doesn't hold. The work would rather you'd gone home. It'll say so on Wednesday morning, in the difference between a person who had an evening and one who didn't.