Journal · Second Curve · 2026-08-26
Multitasking is just fast switching, and every switch leaves a residue. One thing at a time isn't slower. It's sharper.
Multitasking is just fast switching, and every switch leaves a residue. One thing at a time isn’t slower. It’s sharper.
Here is the tension I actually see, in myself and in the people I talk to about second acts: we don’t think we’re multitasking. We think we’re being responsive. Answering the message while the kettle boils, glancing at the phone during the meeting, keeping three browser tabs of “quick things” open while we write. It doesn’t feel like division. It feels like efficiency. The residue builds up so quietly that we mistake the fog for fatigue, or worse, for aging, when really it’s just the tax we’ve been paying on every switch we didn’t notice we were making.
The switch costs more than the task
Each time attention moves from one thing to another, there’s a startup cost — a few seconds, sometimes longer, to reload context, remember where you were, rebuild the thread of thought. That cost doesn’t show up as a line item. It shows up as the vague sense, at the end of a full day, that you did a great deal and finished very little. This matters more, not less, as we get older, because the currency we’re spending isn’t just time. It’s the mental clarity that lets us do our best thinking, and that clarity is more precious now than it was at twenty-five, when we could burn it carelessly and recover by morning.
Try this: for one working session — sixty to ninety minutes — put your phone in another room, close every tab but the one you need, and do a single task until it’s genuinely done or you hit a natural stopping point. Notice not just the output, but how it feels different in your body. Most people describe it as quieter. That quiet is the sound of not paying the switching tax.
Depth is a decision, not a personality trait
There’s a comforting myth that some people are naturally deep, focused workers and others are naturally scattered. It lets us off the hook. But depth is mostly a set of decisions made in advance, before the moment of temptation arrives. You don’t decide to ignore the notification when it buzzes — by then the decision’s already lost, your hand is halfway to the phone. You decide, earlier, that notifications are off during this block. You decide where the phone lives. You decide how many things are open on the desk. The environment does most of the discipline for you, if you let it.
This is especially good news for anyone building a second curve later in life, because it means the skill isn’t about having more willpower than you did at thirty. It’s about designing fewer moments where willpower is required at all.
Try this: before you start tomorrow’s most important piece of work, spend two minutes removing one source of interruption you’d normally just resist in the moment. Silence the phone, close the email tab, tell the person nearby you’ll be heads-down for an hour. Small, boring, and it works far better than resolving to concentrate harder.
One thread, followed to the end
There’s a particular satisfaction — almost physical — in finishing a single piece of work without fracturing it across the day. Not because finishing fast is a virtue in itself, but because a mind that’s allowed to stay on one thread tends to notice things a fragmented mind misses: the better phrase, the flaw in the plan, the connection between this idea and one from last week. Multitasking doesn’t just slow you down. It flattens the work. Everything gets done to about seventy percent, and seventy percent, repeated across a career or a project, adds up to something noticeably less sharp than it could have been.
This is worth sitting with if you’re rebuilding your work life at this stage: the goal isn’t to do more things. It’s to do fewer things with your full attention, and let that attention be the differentiator. Most people your age are not competing on speed anymore. They’re competing on judgment, on depth, on the quality of thought they bring to a smaller number of things. Switching fast is the opposite of that advantage.
I’ve spent a long time watching people rebuild their working lives in the second half, and this idea — that focus is sharper, not slower — turns out to be one of the more practical levers available, precisely because it costs nothing and requires no new skill, only a different arrangement of the same day. The book goes further into how to build this into a week that also has to hold other people’s demands, energy that isn’t what it once was, and work that actually matters to you. But the place to start is small, and it’s today: pick one thing, and stay with it.
Go deeper. The full method is in Craft Your Second Curve. New here? Start with the free companion pack, or explore the series.