When Systems Fail: Lessons from Medicine That Apply to Design
What a Doctor’s Nutrition Crisis Teaches Us About Questioning Established Frameworks
Source: Watch the full Defeat Diabetes AU webinar here
As someone who works at the intersection of design, technology, and human experience, I’m constantly drawn to stories of systemic failure—not because I enjoy watching things fall apart, but because these moments of crisis reveal something profound about how we create and maintain complex systems. Dr. Ken Berry’s journey from conventional physician to dietary rebel offers unexpected insights for anyone designing experiences in our rapidly changing world.
The Architect Who Followed the Blueprint
Berry’s story begins exactly where mine does every morning: following established guidelines that seem unquestionable. As a family physician, he dispensed the American Diabetes Association’s official advice with complete confidence—low fat, high whole grains, abundant fruits and vegetables. The institutional framework was clear, the research seemingly conclusive, the path forward well-documented.
Then came his own health crisis. At 297 pounds with prediabetes and fatty liver disease, Berry did what any good practitioner does: he followed his own professional advice. The ADA guidelines. The expert consensus. The established playbook.
His health deteriorated.
In my book Unfinished: Notes on Designing Experience in a World That Never Stops Changing, I explore how our most dangerous assumptions are the ones we inherit without examination. Berry’s realization—”I didn’t know a damn thing about human nutrition”—mirrors moments I’ve witnessed in design organizations where perfectly logical systems produce persistently poor outcomes.
Pattern Recognition vs. Pattern Acceptance
What fascinates me about Berry’s pivot isn’t just that he changed his approach—it’s how he changed it. He didn’t abandon methodology; he questioned which methodology deserved trust. He moved from pattern acceptance (following established protocols) to pattern recognition (observing what actually worked).
This distinction matters profoundly in my work as a Digital Experience Design Architect. We’re constantly presented with frameworks: design systems, research methodologies, implementation strategies. The question isn’t whether to use frameworks—they’re essential for scaling insight—but whether we’re willing to interrogate them when they fail to serve genuine human needs.
Berry’s experimental approach—trying Atkins, exploring paleo principles, testing ketogenic eating, eventually discovering carnivore—reflects a research methodology that designers should recognize: rapid iteration based on measurable outcomes. Within three months, he had real data. Not theoretical constructs, but lived results.
The Proper Human Diet Spectrum: Lessons in Personalization
What Berry now calls the “Proper Human Diet Spectrum”—a range of carbohydrate restriction tailored to individual metabolic needs—offers a powerful metaphor for experience design. There’s no universal solution. The framework must flex to accommodate vastly different user contexts.
This mirrors challenges I navigate daily in large-scale organizational design. When architecting digital experiences for thousands of users with different roles, technical capabilities, and workflow contexts, the question isn’t “what’s the one right answer?” It’s “what’s the spectrum of viable approaches, and how do we match individuals to the right point on that continuum?”
Berry uses comprehensive lab work and continuous glucose monitoring to teach patients how different foods impact their specific metabolism. He’s not just treating disease—he’s creating a feedback system that builds user agency. This is experience design at its most fundamental: giving people tools to understand their own patterns and make informed choices.
Risk Communication and Motivation Design
One aspect of Berry’s approach particularly resonates with my work in complex enterprise environments: how he communicates risk. Rather than abstract statistics, he shows patients real-life images of diabetic complications. This isn’t fearmongering—it’s making invisible consequences tangible.
We face similar challenges when advocating for design changes in large organizations. Telling stakeholders that “poor UX will impact conversion rates” often falls flat. Showing them actual user sessions—the confusion, the frustration, the abandoned workflows—creates visceral understanding that drives action.
Berry’s warning against “false choices”—replacing junk food with equally problematic “healthy” alternatives—parallels what I call “cosmetic innovation” in digital design. Swapping one confusing interface for a differently confusing interface doesn’t solve the underlying problem. We need systemic rethinking, not surface-level redesign.
Challenging the Cholesterol Consensus: When Proxy Metrics Mislead
Berry’s stance on saturated fat and cholesterol offers crucial insight for anyone working with data and metrics. The medical establishment focused intensely on LDL cholesterol as a primary cardiovascular risk factor, while Berry argues that metabolic syndrome itself poses far greater danger.
This is a proxy metric problem that designers know intimately. We obsess over click-through rates while ignoring task completion time. We celebrate engagement metrics while users grow more frustrated with each interaction. We optimize for what’s easily measurable rather than what genuinely matters.
The question Berry asks—”Are we measuring the right thing?”—should haunt every dashboard we build, every KPI we establish, every success metric we celebrate. Sometimes the most important outcomes resist easy quantification.
Beyond Diabetes: Emergent Properties in Complex Systems
What makes Berry’s work particularly relevant to experience designers is his documentation of unexpected improvements beyond metabolic health: better mental health outcomes, reduced autoimmune symptoms, improved neurological function. These weren’t predicted by the initial framework—they emerged from system-wide changes.
This mirrors my observation that truly effective experience design often produces benefits beyond initial success criteria. When we redesign a workflow to be more intuitive, we don’t just improve task completion—we reduce cognitive load, decrease stress, improve job satisfaction, sometimes even shift organizational culture.
In Unfinished, I argue that design in our era of constant change requires embracing emergence rather than demanding complete predictability. Berry’s “reverse education” prediction—patients educating doctors through their personal success—reflects a user-driven innovation model that resonates deeply with how I see technology adoption unfolding in enterprise contexts.
Systemic Change Through Individual Agency
Berry co-founded the American Diabetes Society not through top-down reform but by empowering individual practitioners and patients to challenge mainstream protocols. This grassroots approach to systemic change mirrors what I’ve observed in large organizations: lasting transformation rarely comes from executive mandates alone. It emerges when individual contributors gain enough agency and evidence to challenge inherited assumptions.
This is why my work focuses on creating systems that amplify human capability rather than constraining it. Whether it’s continuous glucose monitoring giving patients real-time metabolic feedback or thoughtfully designed internal tools giving employees autonomy over their workflows, the principle remains constant: information plus agency drives better outcomes than prescription alone.
The Unfinished Nature of Knowledge
Berry’s journey from confident conventional practitioner to questioning explorer captures something essential about intellectual honesty in any field. His willingness to admit “I didn’t know a damn thing” required more courage than maintaining the appearance of expertise.
In my practice spanning enterprise architecture, user research, and system design, I’ve learned that the most dangerous designer is the one who’s certain they understand the problem completely. Our world changes too rapidly, our systems grow too complex, our users too diverse for any single framework to capture full truth.
This is why I titled my book Unfinished. Not because I lack commitment or rigor, but because I recognize that design, like Berry’s understanding of human nutrition, must remain open to revision. The moment we declare something “finished”—whether it’s a dietary protocol, a design system, or a research methodology—we close ourselves to the very feedback that could improve our work.
Practical Implications for Design Practitioners
What should we take from Berry’s journey into our design practice?
Question inherited frameworks. Not cynically, but methodically. When established guidelines produce poor outcomes despite faithful implementation, the problem may be systemic rather than individual.
Build feedback systems that reveal truth. Berry’s use of continuous glucose monitoring creates visceral, immediate understanding. What are the equivalent tools in your practice that make invisible patterns visible?
Personalize rather than standardize blindly. Berry’s spectrum approach acknowledges that different individuals require different interventions. How do your design systems accommodate genuine user diversity rather than forcing conformity?
Measure what matters, not what’s convenient. If your success metrics don’t align with actual user wellbeing, you’re optimizing the wrong things.
Empower users with agency. The best systems teach people to understand their own patterns and make informed choices. Are your designs building user capability or creating dependency?
Embrace productive uncertainty. Berry’s willingness to experiment, iterate, and revise based on evidence reflects intellectual humility that every designer should cultivate.
The Larger Pattern
Berry’s story represents more than one doctor’s dietary discoveries. It’s a case study in how complex systems evolve, how inherited knowledge sometimes misleads, and how genuine innovation often emerges from questioning rather than accepting established wisdom.
As I’ve argued throughout my writing on technology, design, and human experience: our most meaningful innovations emerge not from technology alone, but from deeply understanding how people think, work, and thrive. Whether we’re designing dietary protocols or digital experiences, the fundamental challenge remains identical—creating systems that serve genuine human needs rather than perpetuating inherited assumptions.
The world keeps changing. Our frameworks must evolve accordingly. The practitioner who admits uncertainty and pursues evidence ultimately serves users better than the expert who defends outdated consensus.
About the Author
I work at the intersection of design, technology, and human experience—crafting intelligent systems that amplify human capability rather than replace it. As a Digital Experience Design Architect, my practice is grounded in a belief that the most meaningful innovations emerge not from technology alone, but from deeply understanding how people think, work, and create.
My approach combines rigorous methodology with creative vision. I question assumptions, challenge conventional wisdom, and seek patterns that others might miss. Whether exploring user research methodologies, designing enterprise systems, architecting digital experiences, or examining broader societal challenges, I maintain a critical lens that asks not just “what works” but “why it works” and “for whom does it work best.”
Each article I write reflects this philosophy: technology should expand our creative horizons, design should serve genuine human needs, and innovation should be tempered with wisdom about its implications.
For those eager to explore further:
Subscribe to User First Insight for ongoing perspectives on design, technology, and human experience in enterprise contexts. My book Unfinished: Notes on Designing Experience in a World That Never Stops Changing offers deeper exploration of design philosophy in an age of constant transformation.
For broader discussions on societal issues, sustainability, and global politics, explore Black & White Perspective — clear perspectives on the issues that matter, and practical ways to solve them.
Connect with me on LinkedIn for professional conversations, or visit haiderali.co and stayunfinished.com to see how these ideas manifest in practice.