The Cold Water and the Deep-Sea Fish
The water had gone cold. Not recently cold - properly cold, the kind that suggests the hot tap gave up on you some time ago and moved on with its life. You were standing at the kitchen sink. You are, technically, still standing at the kitchen sink. But you haven’t been here for a while.
It started with the washing up, which led to thinking about that documentary you half-watched on Tuesday, which led to wondering whether anglerfish bioluminescence is actually produced by symbiotic bacteria (it is), which led to a surprisingly detailed internal monologue about chemosynthesis on the ocean floor, which led to - well, it doesn’t matter where it led, because now you’re back. The light in the kitchen has shifted. Your hands are freezing. And you have that particular feeling, the one that’s hard to describe to people who don’t get it: the slight vertigo of having been somewhere else entirely while your body stayed completely still.
You weren’t daydreaming, exactly. You were thinking with your whole chest.
If this sounds familiar - not as a quirky anecdote but as a persistent feature of your life - there’s a word for the architecture behind it. You probably haven’t heard it in a GP’s office or a workplace wellbeing seminar. But you might find it changes how you understand quite a lot.
What monotropism actually is - and why haven’t you heard of it?
Monotropism is a theory proposing that some brains - particularly autistic and ADHD brains - naturally concentrate their attention and interest resources intensely on fewer things at once. Where a polytropic brain might spread its attention across a wide delta, a monotropic brain sends everything rushing down a single, narrow channel. Interest drives attention. Attention follows interest. And when the channel is deep, it’s deep.
The theory was first formally proposed in 2005 by Dinah Murray, Mike Lesser, and Wenn Lawson - all autistic researchers, which matters more than it might initially seem.¹ For most of its history, autism has been theorised about autistic people by non-autistic clinicians. Monotropism came from inside the house.
Since then, the theory has gained significant traction within autistic communities, particularly through the work of Fergus Murray (Dinah’s son) and the monotropism.org project,² which has done more to make the concept accessible than any academic paper could. But it remains oddly absent from mainstream conversations about neurodivergence. Partly because it doesn’t fit neatly into deficit-model frameworks - it describes a different attentional strategy, not a broken one. And partly, if we’re being honest, because theories that don’t point toward pharmaceutical interventions tend not to attract research funding. Funny how that works.
Here’s what most articles about monotropism don’t say, because they stop at the definition: for many late-diagnosed adults, encountering this theory produces something that feels less like learning a new concept and more like retroactive relief. A sudden, slightly dizzying recontextualisation of their entire life.
The kid who couldn’t stop talking about trains. The teenager who read an entire fantasy series in four days flat and then couldn’t explain why they’d failed their geography coursework. The adult who can spend six hours troubleshooting a code problem with something approaching joy but cannot - genuinely cannot - remember to reply to a text message from someone they love.
These aren’t failures of discipline. They aren’t character flaws. They’re monotropism.
The map doesn’t change the territory. But it does help you stop blaming yourself for getting lost.
The difference between monotropism and the words you already know
You might be thinking: isn’t this just hyperfocus? Or special interests with a fancier name?
Not quite. Hyperfocus and special interests describe what a monotropic brain does in specific moments or around specific topics. Monotropism describes why - the underlying attentional architecture that makes intense, selective focus the brain’s default mode rather than an occasional state. It’s the difference between noticing that your car keeps pulling to the left and understanding that the wheels are aligned differently.
Hyperfocus, particularly in ADHD framing, tends to be discussed as a temporary state - something that happens to you, often at spectacularly inconvenient times, like when you need to leave for a dentist appointment but you’ve just discovered a Wikipedia rabbit hole about the history of anaesthesia. Special interests, in autism framing, are usually described as topic-specific passions. Both descriptions are accurate as far as they go. They just don’t go far enough.
Monotropism sits underneath both. It explains not only the intense focus but the cost of interruption - why being pulled out of a tunnel doesn’t just break your concentration but can feel like being physically yanked out of a dream mid-sentence. It explains why transitions feel like dislocation. Why “just five more minutes” is never five minutes. Why task-switching isn’t merely annoying but genuinely exhausting in a way that’s hard to articulate to someone whose brain does it automatically.
The phenomenology of it - what it actually feels like from the inside - deserves more attention than it gets. When a monotropic brain enters a tunnel, there’s a quality of presence that’s hard to replicate any other way. Full sensory and cognitive immersion. The world outside the tunnel doesn’t disappear exactly, but it becomes irrelevant, like furniture in a room you’re not using. Time behaves differently in there. Three hours can feel like twenty minutes. Sometimes it’s the most alive you feel all week. This maps closely onto what Csikszentmihalyi described as flow - a state of complete absorption in which self-consciousness recedes and performance peaks³ - though for monotropic brains, the entry conditions are different and the exit is considerably less graceful.
And then someone says your name, or the phone rings, or a Teams notification makes that particular sound, and you’re out.
The exit is brutal. Disorientation. Irritability that seems disproportionate to the interruption. A sense of having been somewhere real and now being expected to perform normality in a place that feels flimsy by comparison. People sometimes think you’re being rude. You’re not being rude. You’re re-entering the atmosphere without a heat shield.
For late-diagnosed adults, understanding this pattern reframes years - decades, sometimes - of being called obsessive, inflexible, or bad at multitasking. Those were never personality flaws. They were descriptions of a real neurological pattern, observed from the outside by people who didn’t have the framework to understand what they were seeing.
Monotropism at work - or: why open-plan offices are a specific kind of hell
In adult professional life, monotropism tends to produce a confusing contradiction that baffles managers and HR departments in equal measure. Exceptional depth and quality in focused work. Significant difficulty with everything else.
The monotropic worker - and I’m generalising here, which I’m aware is exactly the kind of thing I said I wouldn’t do, but bear with me - may produce extraordinary output when given deep-focus time and a problem they’re genuinely interested in. The same person may struggle visibly with:
- Meetings that fragment their flow
- Instant-messaging notifications that arrive like small cognitive grenades
- Rotating priorities that require constant context-switching
- The ambient social monitoring that open-plan offices demand
- The expectation that you should be simultaneously aware of your inbox, your colleague’s body language, the room temperature, and the deadline you agreed to in a meeting you can barely remember attending
The employment gap for autistic adults in the UK is significant: research suggests that autistic adults experience notably lower employment rates compared to non-disabled adults.⁴ Monotropism doesn’t fully explain that gap, but it goes some way toward explaining why environments designed for polytropic attention make sustained employment so difficult.
Many late-diagnosed adults have spent entire careers building elabourate, invisible workarounds. Noise-cancelling headphones worn like armour. Arriving at 7am or staying until 8pm to get two uninterrupted hours. Saying yes to tasks in meetings because the social pressure is overwhelming, then quietly failing to deliver because the task never made it from short-term memory into any system that might actually track it. These aren’t signs of laziness or poor organisation. They’re monotropic brains trying to function in environments designed for a fundamentally different kind of attention.
Consider a specific scene. Wednesday afternoon, 2:15pm. A meeting room with that weird motivational poster - the one with the mountain and the word PERSEVERANCE that nobody chose and nobody can remove. A monotropic person is expected to simultaneously track multiple conversational threads, respond to social cues, take notes, contribute ideas on demand, and process the fact that someone across the table is clicking a pen with metronomic persistence. The fluorescent light is doing that thing. Someone’s perfume arrived in the room before they did and shows no signs of leaving.
What’s happening internally: the attention tunnels are competing. None of them can go deep. The whole system is running hot, like a laptop with many browser tabs open and the fan screaming. The monotropic brain isn’t designed for this. It’s being asked to do something structurally incompatible with its architecture, and it’s spending enormous energy performing the appearance of coping.
After the meeting, colleagues seem energised. Recharged, even. The monotropic person is exhausted in a way that’s difficult to explain without sounding dramatic. This is cognitive fatigue that accumulates invisibly, meeting by meeting, day by day, until it becomes the kind of burnout that doesn’t respond to a long weekend or a mindfulness app. Research into autistic burnout identifies the accumulation of masking-related exhaustion as a distinct and serious phenomenon, not a synonym for general workplace stress.⁵
This connects to masking, obviously. Many monotropic adults have learned to perform polytropism - to look like they’re tracking everything, laughing at the right moments, nodding at appropriate intervals - while internally managing a constant cognitive tax. It works, in the sense that it keeps you employed and socially acceptable. It works the way running a marathon in shoes two sizes too small works: you’ll finish, but something is going to give.
Practical takeaways: working with a monotropic brain
Understanding the architecture is one thing. Here are some approaches that tend to actually help:
- Protect transition time. Build buffer between tasks and meetings - even ten minutes - to allow the brain to close one tunnel before opening another. This isn’t a luxury; it’s load management.
- Name your tunnels. When you’re deep in focus, a brief written note about where you are and what you were doing makes re-entry after interruption significantly less disorienting.
- Batch your context-switching. Group meetings, emails, and admin into defined blocks rather than allowing them to fragment your day. Monotropic brains do better with fewer, longer focus periods than many short ones.
- Use interest as an entry point. If a task feels impossible to start, find the angle of it that genuinely interests you and begin there. The tunnel will often pull you in once you’ve found the right opening.
- Communicate your working style explicitly. Guidance on neurodivergence at work supports reasonable adjustments for autistic and ADHD employees - which can include flexible hours, written briefs instead of verbal instructions, and protected focus time.⁶ You don’t have to mask your way through it alone.
- Recognise the exit cost. When you’re irritable after an interruption, that’s not a character flaw. It’s a neurological response to forced tunnel collapse. Naming it - even just to yourself - reduces the secondary guilt that tends to pile on top.
What this doesn’t resolve
I’d like to end with a neat conclusion about how understanding monotropism fixes everything, but it doesn’t. Knowing the word doesn’t make the meetings shorter. It doesn’t stop people interrupting you. It doesn’t make your employer redesign the office.
What it does - and I think this is enough - is give you a different story about yourself. Not the one where you’re lazy, or difficult, or mysteriously unable to do things that seem easy for everyone else. A story where your brain has a specific, describable way of allocating attention, and that way has genuine strengths alongside genuine costs, and neither of those things is your fault.
The water’s still cold, by the way. But at least now you know why you didn’t notice.
References
¹ Murray, D., Lesser, M., & Lawson, W. (2005). Attention, monotropism and the diagnostic criteria for autism. Autism, 9(2), 139 - 156. https://doi.org/10.1177/1362361305051398
² Murray, F. et al. Monotropism.org - a community-led resource on monotropic theory and neurodivergent experience. https://monotropism.org
³ Csikszentmihalyi, M. (1990). Flow: The Psychology of Optimal Experience. Harper & Row.
⁴ Office for National Statistics. (2023). Outcomes for disabled people in the UK: 2021. ONS. https://www.ons.gov.uk/peoplepopulationandcommunity/healthandsocialcare/disability/articles/outcomesfordisabledpeopleintheuk/2021
⁵ Raymaker, D. M., Teo, A. R., Steckler, N. A., Lentz, B., Scharer, M., Delos Santos, A., Kapp, S. K., Hunter, M., Joyce, A., & Nicolaidis, C. (2020). “Having all of your internal resources exhausted beyond measure and being left with no clean-up crew”: Defining autistic burnout. Autism in Adulthood, 2(2), 132 - 143. https://doi.org/10.1089/aut.2019.0079
⁶ ACAS. (2023). Neurodiversity in the workplace. https://www.acas.org.uk/neurodiversity-in-the-workplace