Systems Thinking: Understanding the Relationships That Shape Our World

For most of my life, I thought I had changed careers multiple times.

I studied chemistry and biochemistry. I worked in banking. I managed fitness clubs. I built technology companies. I immersed myself in nutrition and health science. I write about forests, human health and business.

On the surface, they seem like completely different worlds.

But recently, I realised they all have one thing in common.

I wasn’t changing careers.

I was learning to understand systems.

Today, almost every problem I encounter is viewed through three complementary lenses:

• Systems Thinking
• First Principles Thinking
• Reverse Engineering

Together, they have become the compass that guides my work—and increasingly, my life.

Systems Thinking: Understanding Relationships

Most people naturally focus on individual problems.

A website is slow.

A business is struggling.

A person has back pain.

A relationship is failing.

A systems thinker asks a different question:

What system is producing this outcome?

Instead of blaming a single component, systems thinking explores the relationships between all the interconnected parts.

A forest isn’t simply a collection of trees.

It is rainfall, soil, fungi, insects, birds, microbes, sunlight, fire, time and countless invisible interactions.

Remove one element and the entire system begins to change.

The same applies to businesses, families and our own bodies.

The outcome is rarely caused by one thing.

It is usually the result of many things interacting over time.

First Principles Thinking: Returning to Truth

Once we understand the system, we need to separate assumptions from reality.

First principles thinking asks:

What do I know to be fundamentally true?

It’s an invitation to strip away convention and rebuild our understanding from the ground up.

In business, many people assume they need another IT company.

But when I looked deeper, I realised that wasn’t the real problem.

Businesses don’t wake up wanting IT support.

They want stable technology that allows them to focus on serving their customers.

The first principle wasn’t “provide IT.”

It was:

Create stability.

That single insight became the foundation of Katberg.

The same applies to health.

Instead of asking which supplement fixes a symptom, we might ask:

What does the human body fundamentally require to thrive?

Sleep.

Movement.

Nutritious food.

Connection.

Purpose.

Safety.

When we begin with truth, the path forward becomes much clearer.

Reverse Engineering: Learning From Outcomes

The third lens works backwards.

Rather than asking, “What should I do?”

Reverse engineering asks:

How did this outcome come to exist?

Imagine meeting someone who is exceptionally healthy.

Instead of admiring the result, you become curious about the process.

What habits produced this?

What environment supported it?

What daily decisions accumulated over years?

The same applies to organisations, ecosystems and even our own emotional lives.

When I reflected on my own childhood, I stopped asking, “What’s wrong with me?”

Instead, I asked:

“What sequence of experiences led me to believe I wasn’t enough?”

That shift changed everything.

It replaced self-judgement with curiosity.

Curiosity became understanding.

Understanding opened the door to healing.

The Power of Combining All Three

Each way of thinking is powerful on its own.

Together, they become transformational.

Systems thinking asks:

What relationships produce this outcome?

First principles ask:

What truths remain when assumptions are removed?

Reverse engineering asks:

What sequence created what I see today?

One explores the present.

One grounds us in reality.

One reveals the past.

Together, they help us design a better future.

From Fixing Problems to Stewarding Systems

Perhaps the greatest lesson I’ve learned is that healthy systems rarely emerge by accident.

They are cultivated.

A thriving forest doesn’t happen because someone forces every tree to grow.

It flourishes because the conditions allow life to flourish.

Healthy businesses are no different.

Healthy families are no different.

Healthy bodies are no different.

Healthy communities are no different.

The role of a steward is not to control every outcome.

It is to create the conditions that allow healthy outcomes to emerge naturally.

That idea has become central to everything I do.

Whether I’m helping a business stabilise its technology, exploring the science of human health, or dreaming about a future botanical farm, the question remains the same:

What conditions allow this system to flourish?

I no longer see separate careers.

I see one lifelong journey.

A journey of understanding systems, discovering first principles, reverse engineering outcomes, and ultimately becoming a better steward of the world around me.

Perhaps that’s what science has always been teaching us.

Not simply how things work.

But how everything is connected.