Week 5 Crit: The sandwich

Building an incubation slot on purpose. Everyone makes and eats a sandwich in silence, with nothing else running, to find out what a mind does when you finally give it nothing.

22 March 2027

Why a sandwich is on the syllabus#

Because it is the most precise instrument we have for the thing this course is about.

The claim, argued properly in week 5, is that a spiral repeats because it never gets the conditions under which thinking finishes. Those conditions turn out to be surprisingly specific. An easy, automatic task that occupies your hands and leaves your attention free. Making a sandwich is exactly that. So today we build the condition deliberately, in a room full of people, and watch what happens.

Two outcomes are interesting and you should be ready for either. Your thinking might settle something. Or the silence might hand your spiral an open microphone, which is data of a different kind and worth just as much.

Before the session#

Bring ingredients for a sandwich you actually want to eat. Bread and one or two fillings is plenty; this is not a cooking competition and there is no prize for ambition. Tell us in advance about allergies and we will keep the tables apart.

If you would rather not eat in front of people, for any reason, and you do not have to say which, bring something to make and take away, or come and do the discussion half instead. Say so beforehand or just turn up. Both are fine.

In the session#

Forty-five minutes, no talking, phones away and face down. You make the sandwich. You eat the sandwich. That is the entire activity.

No music. No podcast. Nobody explaining the exercise while you do it. If it helps, notice what you are doing. The order you assemble things in, whether you cut it, whether you already knew you cut it, which bite you liked, the point at which you stopped tasting it and were just finishing it. But noticing is not homework. Mostly, make it, eat it, be there.

Somewhere around minute six this stops being pleasant and starts being long. That is the interesting part and it is not a sign you are doing it wrong.

Then, the discussion#

• What did you reach for that wasn’t there?
• Where did your thinking actually go? Did anything resolve itself without you working on it, and if so, what had you been carrying?
• Did anyone’s spiral get louder in the silence? That is the strongest objection to this whole crit and we should hear it.
• When did your attention leave, where did it go, and did it come back?
• Was the silence the hard part, or was it the not-multitasking?

Why this, and how far the evidence goes#

There is a real literature behind the eating half. Mindful-eating research finds that training attention around food reduces automatic, unnoticed eating patterns. A 2025 systematic review of the area reports genuine effects while flagging small samples and mixed results, which is the honest summary rather than the enthusiastic one.

Nobody, as far as we can tell, has run a controlled trial on making a sandwich in silence. What this crit does is take the mechanism from that literature and from the empty slot, an undemanding task with your attention left free, and apply it to the most ordinary thing we could think of. That is an extrapolation, not a proven intervention, and you should hold it that way.

The argument for the ordinary thing is that you already do it several times a day. Whatever you find out here, you can go and check tomorrow.

Afterwards#

Nothing to submit. One optional thing worth doing is a meal this week with nothing else running, plus a single sentence about what turned up. That sentence is audit material.

Keep whatever happened today in mind for week 6, which looks at what usually occupies this slot instead, and at why filling it with a phone feels like relief from a spiral while doing the opposite.