The Cost of Appearing Functional

The Comfortable Lie #

There’s a model of disability that feels mathematically tidy and is almost entirely wrong.

It goes like this: a person has Disability A and Disability B. Their overall difficulty is therefore A plus B. If we build an accommodation for A, we’ve reduced the total load to just B. Progress has been made. The spreadsheet balances. Everyone goes home feeling useful.

In reality, disability isn’t an additive sum. It’s a resource contention issue. When an accommodation built for one condition requires a capacity another condition has already depleted, the result isn’t a reduction in load. It’s a buffer overflow.

Two disabilities aren’t twice the difficulty. They’re potentially the square of it, or the cube, depending on how deeply the resource pools and the system’s own design choices interact.

The additive model is comfortable because it’s legible. Line items are easy to audit, fund, and mark complete. The multiplicative model is uncomfortable because it demands we reason about collisions, compounding costs, and the reality that a solution for one person can be an active harm to another.

Manual Mode #

Most people experience their bodies like a high-level script with batteries included. Breathing, swallowing, digestion, postural stability, and spatial awareness are handled by the standard library in the background. They’re low-overhead, automated processes.

I operate in what I call Manual Mode. My background processes aren’t automated. I’m manually managing the event loop.

I’m totally blind, autistic, and live with topographical agnosia, meaning I have no mental map and must navigate using raw logic and tactile landmarks. I also manage idiopathic intracranial hypertension, which feels like a balloon being over-inflated behind my eyes. Fibromyalgia leaves my nervous system stuck on a high-pain setting. Gastroparesis and esophageal dysmotility mean my digestive system operates unpredictably. My airway is compromised by severe allergies, and my swallowing reflex doesn’t trigger automatically.

In a standard system, physiological survival is a background daemon. For me, it’s a blocking task in the foreground. It requires constant, conscious CPU cycles. Every swallow is a conscious execution. If I lose focus, I find myself choking. If I’m deep in a problem, I forget to breathe deeply, my intracranial pressure spikes, and I get a debilitating headache.

The CPU cycles required to keep my physical hardware running are cycles I can’t use for anything else. And when an accessibility solution for one condition requires a capacity another condition has already depleted, the system crashes.

The Institution That Couldn’t Compute Multiplication #

I started attending the Texas School for the Blind and Visually Impaired as a full-time residential student at fourteen. For the first couple of years, it was mostly positive. I lived in a dorm, had structure, and did well academically. My needs were consistently framed as blindness-related. Nobody suggested anything else was going on.

At sixteen, I experienced severe head and eye pain. It was initially ignored and later misdiagnosed as glaucoma. In reality, I was experiencing idiopathic intracranial hypertension, a neurological condition. Because of the misdiagnosis and the intensity of the pain, I ultimately had my eye surgically removed. After I healed, I returned to school under the assumption that the medical problem had been resolved.

It wasn’t. The underlying neurological condition was never properly identified or treated. From that point forward, ongoing pain, neurological symptoms, and reduced tolerance for stress were consistently interpreted as psychological, behavioral, or blindness-related issues.

At eighteen, I was placed into a transition program designed to build independence skills. The program’s design assumption was well-intentioned and purely additive: blindness accommodations plus increased demands equals a prepared, independent graduate.

The program wasn’t designed for a student who was also autistic, managing undiagnosed IIH, and operating in a body that required conscious neurological oversight for basic survival functions. They had no variable for resource competition. The increased independence demands consumed the cognitive and neurological reserves I required to manage every other system. My body began to collapse. Fibromyalgia symptoms emerged as a permanent system error. Neurological overload became my baseline state.

The harder I tried to meet their standard of independence, the worse every other condition became, because their definition of independence required me to spend resources I was already allocating just to stay alive.

When I communicated this, the institution’s additive model had no way to process it. Because their spreadsheet didn’t have a multiplication operator, my physical collapse was interpreted as resistance, psychological instability, and a failure of motivation. My valedictorian status was removed. My assistive technology was confiscated. Scholarships were withdrawn. I was nearly prevented from walking at graduation. My mom had to fight for me to be allowed to return the following year.

The message was clear: once I could no longer perform independence as the school defined it, I was no longer worthy of recognition, resources, or care.

I’m thirty-four now. I continue to struggle with severe executive dysfunction and task initiation. Efforts toward independence are often met not with empowerment but with shutdown, because my nervous system learned, repeatedly, that trying harder led to pain, punishment, and loss.

That’s not a failure to apply tools or strategies. It’s the long-term impact of being pushed beyond capacity, disbelieved, and abandoned at a critical developmental stage.

When the Accommodation Multiplies the Barrier #

The multiplicative nature of disability isn’t theoretical. It shows up in every accommodation that’s designed for one condition and breaks against another.

Audiogames are held up as the gold standard for blind accessibility. If a player can’t see a 3D space, give them directional audio. Let sound carry the spatial information. For a blind player with a standard spatial mapping system, this works. For me, it’s a second barrier built directly on top of the first. Directional audio requires the listener to hear a sound, locate it in 3D space, translate that vector into a navigable direction, and execute a command under time pressure. Because of topographical agnosia, my brain doesn’t have that spatial mapping library. I have to emulate it manually, calculating cardinal references and headings in real time. That emulation costs the exact same CPU cycles I use to maintain Manual Mode. When a game layers multiple simultaneous audio cues, I’m not experiencing immersive accessibility. I’m experiencing critical resource exhaustion. Something gets dropped from the queue. Sometimes it’s the game. Sometimes it’s my airway.

Voice interfaces are marketed as the ultimate hands-free accessibility win. They remove visual and motor barriers. But for me, they represent a high-latency call with a massive failure rate. Speaking isn’t just talking. It’s a sequence of manual motor commands: initiate controlled exhale, coordinate vocal cords, sustain pressure through the sentence, remember what I’m trying to say while doing all of that, try not to trail off when I need to breathe or forget a word, suppress the urge to cough, resume normal breathing. A voice command is a taxing system call. And when the interface mishears me, there’s no retry at reduced cost. I have to re-execute the entire sequence. The accommodation designed to reduce input barriers directly multiplies the cost of the conditions it wasn’t designed to account for.

Reaching over my head is a high-cost physical function. It spikes my intracranial pressure and can trigger a multi-day system crash. But I’m 4'10", and the world is built for people who can reach standard-height cabinets, showerheads, and microwaves. An occupational therapist might suggest a grabber tool. But a visual grabber is useless when you’re totally blind with topographical agnosia. I can’t visually target an item on the top shelf, and I don’t have the internal spatial mapping grid required to guide a three-foot pole to an object I can’t see. The accommodation for the height doesn’t work with the blindness. The blindness accommodation doesn’t work with the spatial processing disorder. Each solution multiplies the next barrier.

A CPAP machine for sleep apnea should be straightforward. But I breathe through both mouth and nose, so I need a full-face mask. My body doesn’t have an automatic swallow reflex, so saliva pools overnight. The machine’s interface was inaccessible, so I couldn’t adjust settings myself. The humidifier was ineffective without heated tubing, which Medicaid refused to cover, claiming it wasn’t medically necessary. The combination of straps, pooling saliva, dry air, and sensory processing issues created an unbearable sensory load. I would take the mask off in my sleep without realizing it. The CPAP has been packed in a box for years. It’s functionally unusable.

Each of these cases follows the same pattern: an accommodation for one condition that depletes resources another condition already spent. The additive model says the accommodation solves the problem. The multiplicative reality says the accommodation is the problem.

The Emotional Budget #

There’s a cost that doesn’t show up in any accessibility checklist. The cost of emotional expression when your body is already running on nothing.

A lot of people think anger has to look loud: yelling, cursing, pacing, slamming doors. All of that costs energy. I don’t have that kind of energy most days. That doesn’t mean I’m fine. It means my body is already running on almost nothing, and showing emotion still has to fit inside that budget.

I’m not less angry. I’m less resourced.

For some people, crying is release. For me, crying can trigger a symptom spiral. More mucus, throat and nasal drainage, sometimes a headache. Then I might be leaning over a bucket spitting for hours, curled up in bed, or both. If I try not to cry, that’s not emotional denial. It’s symptom management. It’s me doing the math: if I cry now, what will it cost me later?

My mom has said she doesn’t know how I’m not angry about my health issues and everything I’ve been through. From the outside, maybe I look calmer than expected. Maybe I don’t sound angry enough. Maybe I don’t cry when people think I should. But calm isn’t always peace. Sometimes calm is exhaustion.

When you’re chronically ill, emotional expression isn’t free. It’s physical. It uses breath, muscle tension, nervous system capacity, focus, and recovery time. It can worsen pain, fatigue, headaches, and other symptoms. So if I seem flat, quiet, or too calm, that doesn’t mean I don’t care. It may mean I care a lot and I’m trying not to crash.

Quiet isn’t the same as okay. Not yelling isn’t the same as acceptance. Not crying isn’t the same as not hurting.

The Performance Tax #

Here’s where it all connects.

People saw that I was blind. They saw that I was verbal. They saw that I could write, think, learn, use technology, advocate, and explain things. They saw intelligence. They saw determination.

And because they saw those things, they assumed they were seeing the whole picture.

They saw the polished essay. The thoughtful explanation. The clear communication. They didn’t see me sitting with a blank document not knowing how to start. They didn’t see me going over what to say in my head for hours. They didn’t see me knowing the shape of what I mean but not being able to get the wording to line up. They didn’t see the translation step that happens between the thought and the words.

They saw the person who seemed calm and assumed she was at peace. They didn’t see the person who was too exhausted to perform anger. They didn’t see the symptom spiral that would follow if she let herself cry.

They saw the student who could produce work and assumed she could handle increased demands. They didn’t see the Manual Mode running underneath. They didn’t see the CPU cycles being stolen from breathing and swallowing to fund the appearance of functioning.

They saw the output and assumed ease. They mistook the quality of the finished product for the cost of producing it. They mistook visibility for understanding.

That’s the performance tax. The cost of appearing functional when your system has no reserve capacity. The labor of producing something that looks like it came easily from a body and mind that are running manual overrides on every background process just to stay alive.

And here’s the cruelest part: the better you perform, the less anyone believes you need help. The more polished the output, the more invisible the cost. The more you seem calm, the more people assume you’re okay. The more you seem capable, the more systems expect you to keep going.

The performance tax is multiplicative too. Every condition you’re managing costs something. Every accommodation that doesn’t account for the others costs something. Every person who sees the wrong version of you costs something. Every institution that treats your collapse as a character failure costs something. And all of those costs compound on the same depleted budget.

What Multiplicative Design Would Mean #

The additive model produces a checklist. Does the tool have a screen reader API? Check. Keyboard navigation? Check. High contrast? Check. Reduced motion? Check. Voice commands? Check. Accommodation complete.

The multiplicative model requires a fundamentally different question: what happens when a user needs all of these features simultaneously, and they conflict?

What happens when the screen reader’s verbosity creates cognitive overload for a user with executive dysfunction? What happens when keyboard navigation requires spatial mental modeling that competes with the user’s limited physical resource pool? What happens when the user would benefit from voice commands but voice is a high-cost system call?

Multiplicative design means:

• Modular accommodation. Features must not be monolithic. A user should be able to toggle spatial audio off while keeping screen reader support on. Don’t force one win at the cost of another.
• Resource awareness. Every accessibility layer has a cost. An interface that requires sustained vocal output from a user whose attention is partially allocated to breathing isn’t a free resource.
• Intersection as the norm. The CDC estimates that over half of adults with disabilities have more than one. Designing for the intersection isn’t an advanced feature. It’s stable code.
• Transparency over perfection. Sometimes needs conflict. The solution isn’t to declare one need more legitimate. Expose the configuration, accept incompleteness, and let the user manage their own resource allocation.

And beyond design, it means something simpler. It means believing people when they tell you what something costs. When I say that crying triggers a symptom spiral, believe me. When I say that voice commands are harder than typing, believe me. When I say that the accommodation you designed for my blindness doesn’t work with my autism, believe me. When I say that I’m not calm, I’m exhausted, believe me.

The additive model doesn’t believe people because it can’t measure what they’re describing. The multiplicative model starts from the assumption that the person living inside the system knows more about the system’s resource constraints than the person auditing it.

The Math Was Never Going to Balance #

I’m not an edge case. I’m the predictable result of a world that designed for one disability at a time and then encountered a user running multiple high-overhead processes on a system with no reserve capacity.

Every institution that touched me used the additive model. TSBVI added blindness accommodations and increased demands and assumed the math would work. It didn’t. The EXIT program added independence skills and reduced supports and assumed I could absorb the difference. I couldn’t. The nursing home counts whether I can walk, eat, and speak and assumes that’s enough. It isn’t.

The care system counts whether I’m alive. It doesn’t count whether I’m living. The accessibility checklist counts whether the feature exists. It doesn’t count whether using it costs more than it saves. The institution counted whether I was performing independence. It didn’t count what the performance cost.

The math was never going to balance using addition. Two disabilities aren’t twice the difficulty. They’re the square, the cube, the exponential function of resource contention that no checklist was built to capture.

It’s time to change the operator.

Not because it’s comfortable. Because it’s the only way to stop punishing people for the predictable consequences of a system that was never designed to hold them.