The Neurotypical World Was Not Built for Everyone And That Is a Design Problem

There is a thought experiment worth sitting with. Imagine a world where approximately fifteen percent of the population could not use stairs. Not because they lacked effort or intelligence, but because their bodies were configured differently. Imagine that most buildings were designed with stairs as the primary mode of vertical movement and that the people who could not use them were regularly described as having a mobility limitation, offered occasional accommodations, and mostly left to find workarounds for a world that had not considered them in its design. Now imagine that no one framed this as a design problem. They framed it as a personal problem. This thought experiment is not imaginary for neurodivergent people. It describes their experience of most institutions.

The Default Assumptions Embedded in Design

Every designed system encodes assumptions about the people who will use it. Educational systems encode assumptions about attention span, processing speed, reading fluency, and comfort with social performance. Hiring systems encode assumptions about the ability to perform competently under interview conditions, which measure a set of social skills that are almost entirely irrelevant to most job functions. Time management systems encode assumptions about the ability to internally track duration and transition between tasks without external support. Healthcare systems encode assumptions about the capacity to describe symptoms accurately under pressure in an unfamiliar environment to a stranger. None of these assumptions are neutral. They advantage people whose cognitive profiles match the encoded assumptions and disadvantage those whose profiles differ. When systems consistently produce worse outcomes for a predictable subset of the population, the system is demonstrating what it was designed for. It was designed for someone else.

The Social Model Applied to Cognition

Disability scholars have argued for decades that disability is produced by the mismatch between bodies and environments rather than by bodies themselves. A person who uses a wheelchair is not disabled by their body. They are disabled by buildings without ramps, by public transit without accessible vehicles, by urban design that treats walking as the only valid form of movement. Disability is the gap between a person and an environment that was not designed for them. The same framework applies to cognitive difference. ADHD does not disable people in all contexts. It disables people in contexts that require sustained attention to low-interest tasks, complex multi-step independent planning, and reliable timekeeping without external support. Many autistic people function exceptionally well in environments with clear structure, explicit communication, and reduced social performance demands. The disability is situational and environment-dependent, not inherent. A study from Queen's University Belfast's Centre for Behaviour Analysis found that neurodivergent adults in workplaces that implemented structured flexible policies, including explicit communication protocols and reduced open-plan office exposure, showed significant gains in self-reported wellbeing and objective productivity measures compared to the same individuals in standard workplace conditions. The environment was the variable.

Who Pays for Poor Design

When systems are poorly designed for a subset of users, the cost of the mismatch is borne by those users. Neurodivergent people spend significant cognitive and emotional energy compensating for environments that do not support their natural way of functioning. This compensation is invisible and exhausting. It looks, from the outside, like normal performance. It does not feel like normal performance from the inside. Research from the University of Cambridge's Autism Research Centre found that the effort required for autistic adults to maintain neurotypical-appearing performance in standard workplace environments was quantifiably higher than for neurotypical colleagues in matched roles, and that this hidden effort was associated with significantly higher rates of burnout, somatic symptoms, and eventual attrition. The cost was real. It appeared in health outcomes rather than in productivity metrics.

Tangent: Universal Design Benefits Everyone

The design principle that produces accessible built environments, universal design, is not about creating special accommodations for a minority. It is about creating systems that work for the widest possible range of people. Curb cuts were designed for wheelchair users. They are also used constantly by cyclists, delivery workers, parents with strollers, and anyone carrying heavy equipment. Closed captioning was designed for deaf and hard-of-hearing viewers. It is widely used in noisy environments and by people learning languages. Designs that account for the full range of human variation tend to work better for everyone. The same principle applies to cognitive design. Explicit written communication reduces ambiguity for autistic employees and also reduces misunderstanding for everyone else. Flexible scheduling accommodates ADHD and also accommodates parents, caregivers, and anyone whose peak cognitive window does not align with the standard nine-to-five. Quieter work environments designed for sensory sensitivity also improve focus and reduce stress across the board.

Making the Change

The barrier to redesigning systems for cognitive inclusion is rarely technical. The solutions are mostly known. The barrier is that the people who design systems are mostly those who fit the existing design well, and it is genuinely difficult to design for a need you do not experience. Meaningful change requires including neurodivergent people in the design process, from the beginning, not as an afterthought. The systems that exist were built. They can be rebuilt.