History of The Common Vein –
An Origin Story

In Brief

Lesson 1

Our introduction to anatomy was led by Professor Philip Tobias — not only one of the world’s leading anatomists, but also an internationally renowned paleoanthropologist, whose work on human evolution helped shape modern understanding of what it means to be human.

On the first day, instead of beginning with bones or muscles, he invited us into the anatomy lecture hall to witness two performances.
First, a pas de deux — a ballet duet —

fluid, precise, expressive.
Then, a pair of black-belt judo experts, demonstrating controlled power, balance, and explosive coordination.

After the performances, Professor Tobias addressed us.

Lesson 2

Extract Foundation Principles
Simplicity to Complexity

After the performances, Professor Tobias addressed us.

Function of the Lung Ashley Davidoff M.D. TheCommonVein.com 32164 32165

Lesson 5

Richard and Stella Van Praagh

Lesson 4
Rosalie Fisher – Physicist

 

Believer in Perspectivism
Multiple Perspectives to get to the Truth

 

Nietzsche and the Truth

Looking at the the Pixel/Voxel from Many Angles

 

Scanner – 256 rows of detectors
8 centimeters of coverage, with the entire heart covered in two scans The rotation speed is 0.27 seconds (total .54 seconds with 120 kw of power.
Now available 640 rows and in .27 secs we scan the whole heart in one rotation
Ashley Davidoff thecommonvein.net

Gave numbers to the pixels

(just like the the 0 and 1 of computer science)

Enabled Objectivity – Ability to Accurately  Measure

 

The Full Story

 

The roots of The Common Vein lie not in technology or digital learning, but in a moment of personal struggle — a struggle familiar to every medical student and clinician: how to transform overwhelming information into meaningful understanding, and ultimately how to apply that knowledge with compassion in our work to help and to heal.

The year was 1971 and we were about to embark on our Anatomy course at the University of Witwatersrand

A formative moment in the history of The Common Vein came  in 1971, as we were about to embark on our anatomy course at the University of the Witwatersrand Medical School

Our introduction to anatomy was led by Professor Philip Tobias — not only one of the world’s leading anatomists, but also an internationally renowned paleoanthropologist, whose work on human evolution helped shape modern understanding of what it means to be human.

On the first day, instead of beginning with bones or muscles, he invited us into the anatomy lecture hall to witness two performances.
First, a pas de deux — a ballet duet —

fluid, precise, expressive.
Then, a pair of black-belt judo experts, demonstrating controlled power, balance, and explosive coordination.

He said, in essence:

You are about to go down into the anatomy halls, where you will spend many days each week dissecting cadavers. The heart, the brain, the intestines, the lungs — all of these will end up separated, placed in formalin-filled buckets at your dissection tables. But I want you to remember what an extraordinary machine the human body is, and what it can do when all of its parts work together in beautiful harmony.

We then took the Hippocratic Oath and proceeded down into the dissection halls.

It was a lecture never forgotten.

That moment reinforced a truth that would later become central to The Common Vein:
that parts gain meaning only in relationship to the whole,
that the whole is greater than the sum of its parts,
and that medicine, anatomy, movement, art, and human endeavor are all expressions of the same universal principles of structure, connection, and unity.

In that lecture hall, anatomy was no longer just dissection.
It became a reminder that understanding the body requires not only analysis, but respect for the harmony that emerges when all parts work together.

The year was 1972.
I was a third-year medical student in Hillbrow, Johannesburg, sitting in a lecture hall as Professor Hendrick Koornhof taught bacteriology. Staph, Strep, rods, spheres — the words came fast, the classifications faster. I scribbled furiously, trying to capture anything I could, hoping that somehow I could reconstruct the lecture afterward.

When I got home, I looked at my notes. They were unreadable — pure cat scratch.
If I could not read them, I could not remember them.
In that moment I realized something profound:

I was a slave to the information, not the master of it.

So I began building a solution.

I created a template — not a list of facts, but a structure of principles.
I broke down each organism into the parts that made it what it was:

• Size
• Shape
• Preferred environment / media for growth
• Staining characteristics
• Structures in the body it could affect

I prepared template pages before each lecture, leaving spaces I would fill in as I listened. Suddenly, the content had order. It had meaning. I had a way in.

How to Make Sense In all the Detail Out There

Start Simple with a
“Brick”
= Foundation Principles
and Build from
Simplicity to Complexity

 

This approach then progressed into anatomy, where the template evolved further. I realized that every structure in the body could be understood through these anchors:

And this efined to these 7 anchors

• Parts
• Size
• Shape
• Position
• Character
• Time / change over time
• Connection (how it relates to surrounding structures)

This became P-SSPCT + C, a way to decode structure

At the same time we were studying physiology and I had to identify the principles of physiology as well.

For function I realised that the way things worked in the body is that received something then processed what was received and then exported the product This was the basic principle of all function and then there were control mechanisms that allowed the functionality to optimise the needs

Basic Principle of Function – Physiology

Physiology of the Basic Reflex at
Spinal Cord Level

Basic Physiology of the Heart

Basic Physiology of the Lungs

Basic Physiology of the Spleen

Conclusion –
Underlying Complexity There is
Simplicity

 

= 

 

How the Body Works in
Health

And When there is  Disease

How to Build from Simplicity to Complexity
In order t Understand Complex
Start Simple and Build

 

And When the word was in Biology
It had Multiple facets

And the Basis of All Medicine
Was and is the Following

Focused on Structure

For Example the Element of Liver Size
From the Phrase Liver Size
Simplicity to Advancing Complexity

 

And if for each organ we could use this template

 

Fill in the advancing foundational principles that could lead to progressive complexity

And hence if we could do all the organs in the same way we would be able to build a whole educational project using the same formula for each organ
This was the Concept and the Dream

I did not know it then, but this thinking placed me on the same path as people throughout history who sought unity or simplicity  within complexity.

Leonardo da Vinci — my lifelong intellectual hero — wrote:

“The noblest pleasure is the joy of understanding.”

“To develop a complete mind: study the science of art; study the art of science.”

His anatomical drawings were not merely illustrations. They were explorations of how form and function echo through the body. Leonardo understood that to see the whole, one must understand the parts — and to understand the parts, one must see their unity.

Centuries earlier, the Greek poet Archilochus (c. 650 BCE) captured the same tension between detail and unity:

“The fox knows many things, but the hedgehog knows one big thing.”

This echoes the two great archetypes of thinking in medicine:

• Splitters — those who divide things into finer and finer categories (the fox).
• Lumpers — those who unify ideas under broader principles (the hedgehog).

Medicine trains us to become foxes — collectors of innumerable details, classifications, and exceptions. But true mastery often comes from hedgehog thinking: one deep unifying principle that organizes the many.

How to Make Sense In all the Detail Out There

For me, that principle became:

Units to  unity.
The whole is greater than the sum of its parts.

Recognizing this sparked a lifelong curiosity.
If this principle was universal, then it must apply to everything — in the body and beyond. I became determined to understand the world through this lens of unity, driven by the belief that I could understand anything if I followed the structure, asked the right questions, and stayed curious.

Curiosity is what keeps us intellectually alive.

 

This was the conceptual birth of The Common Vein.

It began long before the internet existed. These ideas lived on paper, in lecture notes, in clinical observations, and in quiet evenings seeking ways to make medicine simpler, clearer, more human.

Underlying this framework was something even more fundamental — a yearning for oneness.

I began to see this drive toward unity everywhere.
In physics, the atom itself is held together by opposing forces of attraction — the electron drawn toward the proton.
In biology, life begins with pursuit and union — the sperm seeking the egg.
In human experience, relationships reflect the same impulse: individuals drawn toward connection, partnership, and meaning.

At the same time, I was personally struggling with the concept of God and the idea of monotheism. The principle of oneness provided a bridge. I began to understand why so many religious traditions center on a single unifying source — not as doctrine, but as an expression of the same universal longing for unity that appears in nature, biology, and human relationships.

This yearning for oneness —

the movement from separation toward connection — reinforced the core idea behind The Common Vein: that parts are never truly isolated, and that understanding emerges when we recognize how things come together to form something greater than themselves.\\That realization brought me back to medicine, where the body itself became the most tangible expression of unity through structure and connection.

During my clinical years, I organized information using index cards. I placed information in specific locations on the card:

• Top left: the structure
• Top right: the disease category
• Bottom left: the primary finding or diagnosis
• Bottom right: the source of the information

The remaining space on each card captured the essence of what I had learned. I then filed the cards by structure, disease category, and diagnosis. Even then, the seeds of TCV — structure, order, and connection — were taking root.

These were original art I created in the 1980′ to expalin the concept

Then came a turning point — not intellectual, but technological.

In the early 1990s,

as the internet emerged into public life, a new space appeared where knowledge could be organized, visualized, and shared.
Mosaic and Netscape opened windows into a world of digital academic exchange.
During my years at UMass, I began translating these foundational principles into this new medium.

The website TheCommonVein.com became the natural home for these ideas:

Ashley Davidoff MD TheCommonVein.com (TCV-105)

• A place where structure could be mapped
• Where images and concepts could be connected
• Where every organ could be understood through P– SSPCT + connections
• Where the parts and the whole finally lived side by side
• 

TCV evolved into a framework — a unified language for understanding the body. Not a set of facts, but a philosophy:

• Every structure has essence.
• Every essence has pattern.
• Every pattern connects to something larger.
• And through connection, we understand.

The Brick principle

This is the history of The Common Vein:
A journey from confusion to clarity,
from isolated details to unifying principles,
from paper notes to a digital home,
from fox thinking to hedgehog wisdom,
from parts to unity —

 

Practice Notes Scales and Music

 

 

 

Multiple Perspectives

Believer in Perspectivism

Mother in Law Rosalie Fisher – Physicist

Nietzsche and the Truth

Looking at the the Pixel/Voxel from Many Angles

 

Gave numbers to the pixels

(just like the the 0 and 1 of computer science)

Enabled Objectivity – Ability to Accurately  Measure