Conservationist. Storyteller. Sign-language pioneer with orangutans. Sharing 50 years of wild insights from Borneo and beyond. Author of "Out of the Cage: My Half Century Journey from Curiosity to Concern for Indonesia's 'Persons of the Forest'"
Sunday, May 18, 2025
The Perils of Perfection: How to Stay Grounded in a World Full of Experts
Monday, May 12, 2025
One Millimeter: The Fine Line Between Life and Death
In a world of ever-advancing technology and precision engineering, a single millimeter can be the razor-thin boundary between safety and catastrophe. While it might seem negligible to the casual observer, in critical fields like medicine, aerospace, and automotive design, a deviation as small as one millimeter can cost lives—or save them. The Orangutan Dad thinks about things like this.
Let’s explore three powerful examples that show why tolerances matter and how much rides on that single millimeter.
1. Brain Surgery: Navigating a Millimeter of Error
In neurosurgery, precision isn’t just a skill—it’s a matter of survival. When surgeons operate on the brain, especially near sensitive areas like the brainstem or motor cortex, a deviation of even one millimeter can cause permanent paralysis, loss of speech, or death. Advanced imaging and robotic assistance now help surgeons maintain exacting tolerances, but human judgment still plays a crucial role.
Real-world example: Deep Brain Stimulation (DBS) for Parkinson’s disease involves implanting electrodes into the brain. Placement must be accurate within 1 mm to target the correct area without damaging surrounding tissue.
2. Aerospace Engineering: Tolerances at 30,000 Feet
Jet engine turbines spin at over 10,000 RPM and must withstand extreme heat and pressure. The blades and casings are manufactured with microscopic tolerances. A gap that’s 1 mm too wide or too tight can result in mechanical failure, fire, or explosive decompression.
Real-world example: In 1989, United Airlines Flight 232 suffered a catastrophic engine failure due to a tiny manufacturing defect in a titanium fan disk. The error, just over 1 mm in flaw depth, ultimately caused a crash landing that killed 111 people.
3. Automotive Safety: Braking Distance and Impact Zones
Car safety systems—particularly crumple zones and airbag deployment—are calibrated to respond within milliseconds and millimeters. A sensor installed 1 mm too far from its intended position may not trigger the airbag, or could trigger it too late, making the difference between a survivable crash and a fatal impact.
Real-world example: Crash test engineers measure sensor placements to sub-millimeter precision. In some tests, a mere 1 mm offset in crash force distribution has resulted in drastically different outcomes for dummies inside the vehicle.
Takeaway: Precision Is Protection
In a world filled with high-speed machines, delicate organs, and rapid decision-making, tolerances matter more than ever. Whether you're an engineer, a doctor, or simply a consumer, it's worth remembering that the invisible world of measurements is silently shaping our safety every day.
Next time you hear someone say, “It’s just a millimeter,” remember: sometimes, that’s all it takes to cross the line between life and death.
Sunday, May 11, 2025
Parsing Life: How Consciousness Breaks Our Day Into Meaningful Moments
Saturday, May 10, 2025
Expanding the Circle: Embracing Our Place in the Great Ape Family
Friday, May 9, 2025
Looking Down to Remember Who We Are: A Cellular Awakening for the Earth
Each of us is a walking universe of trillions of cells—tiny, intricate miracles humming with the legacy of 4 billion years of life on Earth. Beneath the surface of our skin, in the quiet pulse of mitochondria and the silent division of nuclei, the evolutionary story of our planet unfolds, again and again. We are not separate from this story. We are its latest chapter—its current stewards.
And yet, in times of doubt, fear, or wonder, many of us lift our eyes skyward. We seek answers in the stars, in myths of origin, in distant heavens that promise purpose or peace. These stories, ancient and sacred, are part of what it means to be human. But perhaps we’ve missed something—something vital, hidden in plain sight.
Maybe, instead of always looking up, we should look down and within ourselves.
Down to the soil, alive with bacterial communities older than any civilization.
Down to the moss and fungus that knit forests together in silent communion.
Down to the cells in our own body, heirs of single-celled ancestors who learned to cooperate, adapt, and thrive.
These small things—so often overlooked—remind us of an elemental truth: Life did not begin with grand gestures. It began in warmth, darkness, and patience. In the willingness of molecules to bond. In the resilience of a single cell to divide, persist, and dream forward into complexity.
To be aware of this is not simply scientific. It is sacred.
Because from the humblest beginnings came consciousness. And with consciousness comes responsibility. We are not merely passengers on this planet. We are agents of care, protectors of a delicate inheritance.
So what does it mean to live spiritually in an age of climate collapse and extinction? It may mean re-rooting our reverence—not just in celestial promises—but in the biosphere itself. It may mean falling to our knees not just in churches or temples, but in gardens, wetlands, and forests. It may mean praying not for escape, but for renewal—here, now.
To live in gratitude is to recognize that our very breath, our every heartbeat, is a gift of Earth’s evolutionary generosity. And the most grateful prayer we can offer is action: to protect the living systems that made us, that sustain us, and that will continue—if we choose wisely—long after we are gone.
Let us teach our children not only to reach for the stars, but to cradle a seed.
Let us not just marvel at divine design, but honor the sacred in every cell.
Let us not just dream of heaven, but preserve the only Eden we’ve ever known—Earth.
We are the outcome of ancient life.
We are the awareness of the cell.
And we have the agency to be the caretakers of all life to come.
Wednesday, April 23, 2025
🚀 How Many Times Do You Have to Double a Foot to Reach the Edge of the Universe?
👀? Ever had one of those wild “what if” thoughts while staring at the night sky?
Like:
“If I started with a 1-foot piece of string and kept doubling its length, how many times would I need to do that to stretch it all the way to the edge of the known universe?”
Well, the Orangutan Dad sometimes thinks about cosmic extremes so grab your tape measure, your curiosity, and your love for mind-blowing math—because we’re about to find out.
Tuesday, April 8, 2025
Who's in Control? What Orangutans Taught Me About the Real Power of Communication
When most people think about language, they think about information transfer—sending facts from one brain to another through words, gestures, or signs. That’s how we’re taught to understand it: as a neutral, almost mechanical process of transmitting knowledge. But when I spent several years in the forests of Borneo teaching sign language to orangutans, I began to see communication differently. Not as the exchange of data, but as a subtle—and sometimes not-so-subtle—form of control.
And not me controlling them—often, it was the other way around.




