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TLD30 Sept 2026

THEUNISDUMINY

About Theunis Duminy

Hey. Good to have you here. I'm Theunis.

When people engage with my work, I want them to feel that they are in good hands. I design, compel and build to earn that certainty, not because I am entitled to it.

The same way you feel when walking into a beautiful house where every detail serves a purpose.

I'm fascinated by spaces where exceptional minds can work together without compromising individual excellence.

For me, good is the enemy of great. Not perfectionism, but the recognition that if something's worth creating, why settle for mediocrity?

The most rewarding work emerges from that same purposeful attention to detail that makes you feel, immediately upon entering, that you're exactly where you need to be.

Thoughts; writing

  • 16 min read

    My 12 Favourite MacBook Apps

    The twelve MacBook applications I open every day. A practitioner's field guide to the small, beautiful, well-made tools that make work feel worth romanticising.

    Productivity
    Technology
    Software
  • 11 min read

    The AI Noise Machine

    AI is too consequential for the loudest voices to be the least honest. A practitioner's field guide to the hype, the mythology, and what it's actually costing us.

    AI
    Technology
    Ethics
  • 9 min read

    Stupid Goals Pursued Intelligently

    Choosing is harder than pursuing. Don't waste a year brilliantly achieving the wrong things. Discover how to align your subconscious reward structures with the person you want to become.

    Discipline
    Identity
    Behaviour Change
  • 5 min read

    The Doorknob Principle

    What can doorknob placement teach us about relationships? The Doorknob Principle reveals why bending towards those who can't reach towards you transforms how we navigate compromise.

    Decision Making
    Ethics
  • 12 min read

    Stop Looking, Self-Help Cannot Save You

    The $48 billion self-help industry thrives on your endless pursuit of answers. Ditch endless advice hunts, reclaim your agency, and finally do the work that transforms your life.

    Psychology
    Self Awareness
    Decision Making
  • 12 min read

    Beyond Good Intentions

    Do good intentions excuse bad outcomes? This essay examines the ethics of intention vs. consequence, invoking Kant and urging self-accountability.

    Philosophy
    Decision Making
    Ethics
  • 10 min read

    What 2024 Taught Me

    My key lessons from 2024. Trust your gut, embrace problems, build antifragility, pick your battles wisely, and conquer fear as the mind-killer.

    Reflections
    Self Awareness
    Decision Making
  • 7 min read

    Shaving Our Thinking with Philosophical Razors

    Cut complexity with philosophical razors. Occam's, Hanlon's, Sagan's and more. Master these mental models to sharpen your decision-making and certainty.

    Philosophy
    Decision Making
    Mental Models
  • 11 min read

    The Untenability of Trusting Your Memory

    Memories fade fast. Discover the science of forgetting, leverage journaling tips, and embrace impermanence to capture life's most precious moments.

    Psychology
    Memory
    Self Awareness