The Interstitial Journal blog · Built on evidence, not hype
The Ten Seconds Between Meetings
The third call ends. The fourth is already ringing. Somewhere in that half-second handover you are supposed to have closed one conversation, opened another, and remembered the thing you promised in the first — and you have done none of them, because there was no gap in which to do them. A day of back-to-back meetings isn't hard because it's long. It's hard because every boundary has been scheduled away.
Meetings aren't the unit. Transitions are.
The usual complaint about meeting-heavy days is volume: too many, too long, not enough left over. That framing misses where the cost actually accrues. Each transition carries its own charge, and a day with six meetings has five of them, whether or not the meetings themselves were any good.
The base finding is old and solid. Robert Rogers and Stephen Monsell showed that even switching between two trivially simple tasks — with full warning, in a predictable alternating pattern — is measurably slower than repeating one, and that the penalty does not disappear with practice or preparation time.1 Strong If a predictable switch between two toy tasks in a lab costs something, a switch from a budget review to a one-to-one costs rather more.
Six meetings is not six units of work. It's six units plus five transitions — and the transitions are the part nobody schedules, prepares for, or counts.
What the last meeting leaves behind
The more specific mechanism has a name we've written about before. Sophie Leroy's work on attention residue found that when people move to a new task with the previous one unfinished, part of their attention stays behind — and performance on the new task suffers as a result.2 Strong
Meetings are close to a worst case for this. They are, structurally, a machine for generating unfinished business: a decision deferred, an owner unassigned, a question you didn't get to ask. You leave with several open threads and no time to close any of them, and then you carry them into a room where they are useless — degrading the meeting you're in on behalf of the meeting you've left.
The more useful part of Leroy's research is what reduces it. In a follow-up with Theresa Glomb, the manipulation that helped was not finishing the interrupted task — usually impossible — but forming a brief plan for how to resume it. Being ready to resume did much of the work that finishing would have done.3 Moderate The full version of this argument is in attention residue and the case for interstitial journaling.
Why writing it down beats intending to remember it
Two well-supported findings explain why the fix is a written line rather than a mental note.
The first is Peter Gollwitzer's work on implementation intentions: goals specified as a concrete "when X, I will do Y" are acted on considerably more reliably than goals held as general intentions.4 Strong "Follow up with Priya" is an intention. "Tomorrow morning, send Priya the revised figure" is a plan, and the difference shows up in whether it happens.
The second is E. J. Masicampo and Roy Baumeister's finding that unfulfilled goals intrude on unrelated tasks — but that making a specific plan for them substantially reduces the intrusion, even though the goal itself remains unfinished.5 Moderate That is precisely the transaction you want at 10:59: you cannot finish the thing, but you can stop it charging rent on the next hour. We looked at this mechanism in detail in the Zeigarnik effect and open loops.
What actually fits in the gap
All of the above has to survive a real constraint: there is no gap. So the practice has to fit in the time it takes to close a laptop lid. One line, three parts.
The between-meetings line:
"10:58 — pricing review. Open: whether Q4 tiering lands before the freeze. Next: draft the two options and send to Sam before standup."
What each part is doing: the timestamp and label mark the boundary, so the day stays legible later. The open thread gets the unfinished business out of working memory and onto a surface. The next action is the ready-to-resume plan — the part with the actual research behind it, and the part most often skipped.
Three variants that work in different meeting shapes:
- Nothing was decided. Write that. "No decision; blocked on legal" is a complete and genuinely useful entry — and a fact about your quarter that memory will not keep.
- You committed to something. Write the commitment before the next call overwrites it. This is the highest-value ten seconds in the day.
- You're rattled. A word or two for the mood is worth adding. Putting feelings into words is associated with measurable changes in the brain's response to emotional material — affect labelling, in Matthew Lieberman and colleagues' work.6 Moderate A word, not a cure.
And a scheduling note that isn't ours to enforce but is worth saying: if you can end meetings a few minutes early, the seam exists without you having to steal it. Where you can't, ten seconds is the version that survives contact with a real calendar.
Where the evidence ends
To be clear about which parts are load-bearing. Switch costs and attention residue are strong; implementation intentions are strong; the ready-to-resume result and the plan-making effect on intrusive goals are moderate; affect labelling is moderate.
What is not established is the step we could easily imply and won't: that writing a line between meetings will make your meetings better, your days shorter, or your output higher. Early No study has tested this specific practice in this specific setting, and we're not going to attach a percentage to it — the absence of invented numbers on this site is deliberate and permanent. What the research does support is narrower: transitions cost something real, unfinished threads follow you into the next room, and a concrete written next-step reduces that carry-over more reliably than intending to remember does. This is reflection, not treatment. More on our science page, and on how your notes stay private on our privacy page.
Interstitial Journal is on the App Store
A minimalist, private place to log the seams between tasks — type or speak a timestamped line when you start, switch, or stop, tag it, optionally name a mood. One line is a complete entry. No account, no tracking; your notes sync privately through iCloud. Available now for iPhone, iPad, and Mac.
Download on the App Store →References
- Rogers, R. D., & Monsell, S. (1995). Costs of a predictable switch between simple cognitive tasks. Journal of Experimental Psychology: General, 124(2), 207–231. doi:10.1037/0096-3445.124.2.207
- Leroy, S. (2009). Why is it so hard to do my work? The challenge of attention residue when switching between work tasks. Organizational Behavior and Human Decision Processes, 109(2), 168–181. doi:10.1016/j.obhdp.2009.04.002
- Leroy, S., & Glomb, T. M. (2018). Tasks interrupted: How anticipating time pressure on resumption of an interrupted task causes attention residue and low performance on interrupting tasks. Organization Science, 29(3), 380–397. doi:10.1287/orsc.2017.1184
- Gollwitzer, P. M. (1999). Implementation intentions: strong effects of simple plans. American Psychologist, 54(7), 493–503. doi:10.1037/0003-066X.54.7.493
- Masicampo, E. J., & Baumeister, R. F. (2011). Consider it done! Plan making can eliminate the cognitive effects of unfulfilled goals. Journal of Personality and Social Psychology, 101(4), 667–683. doi:10.1037/a0024192
- Lieberman, M. D., Eisenberger, N. I., Crockett, M. J., Tom, S. M., Pfeifer, J. H., & Way, B. M. (2007). Putting feelings into words: affect labeling disrupts amygdala activity in response to affective stimuli. Psychological Science, 18(5), 421–428. doi:10.1111/j.1467-9280.2007.01916.x
Interstitial Journal is a private note-taking tool for reflection, not a medical or mental-health treatment. The research described here supports specific, narrow claims about task-switching, attention residue, and plan-making; the between-meetings practice itself has not been tested as an intervention. If you're struggling with your wellbeing, please speak with a qualified professional.