# Designing for Reading Disabilities Widens Access for Everyone ## Claim Content designed to reduce decoding effort for people with reading disabilities — plain language, short lines, criterion-based typography — also measurably helps people reading in a hurry, under stress, or in a second language. <!-- atomicity: 1 idea ✓ --> ## Scope & conditions - Holds when the content is general-audience or mixed-technical, and reducing complexity doesn't strip out information the reader actually needs to act. - Breaks when a specialized field (medicine, law, deep technical documentation) requires precision that a blanket plain-language rewrite would erode — the fix there is glossary links and first-use expansion, not simplification of the underlying content. - The mechanism is decoding effort specifically, not general "readability" — line length, heading hierarchy, and letter-feature typography all target how much cognitive work it takes to turn symbols into meaning, independent of how technical the ideas themselves are. ## Evidence TetraLogical frames reading disabilities as processing differences, not intelligence deficits: "Reading disabilities have nothing to do with intelligence. They are a difference in how the brain processes written information." The layout and typography guidance built on that framing — left-align, 70-80 characters per line, sentence-case headings, letter-feature-based font criteria — targets decoding effort directly, which is why it also benefits second-language readers, people skimming under time pressure, and anyone reading on a bad connection or small screen. ## Links - [[3. Resources/Permanent Notes/Visual Layout Must Preserve Sequential Meaning and Focus Order]] — extends: both claims are about a layout or content choice that costs nothing extra to implement but closes an access gap that isn't visible to the person making the design decision. - [[3. Resources/Permanent Notes/Abstracting Drudgery Re-Opens Creative Work to Non-Specialists]] — applies-in: a parallel pattern where removing unnecessary friction expands who can use something, not just how easily. - [[3. Resources/MOCs/Personal Knowledge Management MOC]] — applies-in: the same plain-language and structural-clarity discipline governs how well a note or document survives being re-read months later. - [[3. Resources/MOCs/Accessibility & Disability Inclusion MOC]] — the widening effect that makes targeted reading-access work pay off beyond its target group ## Tests / falsifiers - A/B test the same documentation page reformatted per these rules (line length, heading hierarchy, reading-level target) against the original; measure task-completion time and comprehension for both self-identified reading-disability readers and a general control group — a benefit only in the first group would narrow this claim's scope. - Check whether the benefit holds for non-native-English readers specifically, since the article's own reading-age claim (9-11 years) is asserted via cross-reference rather than freshly sourced in this piece. ## Maintenance - Last tended: 2026-08-16 - Next review: 2026-11-16 ## Source - [[3. Resources/Readwise/Articles/Designing for people with reading disabilities - TetraLogical]] — Grace Snow, TetraLogical, 2026; the "Designing for disabilities" series entry on dyslexia, hyperlexia, and alexia.