"In 1926, Harvey Cushing established the 'Third Circulation' theory, a model that has dominated neuroscience for a century.

As we approach the 100-year mark in 2026, a Chiron Return is in the cosmos; it is time to expose the profound flaw in that original model:

The mystery of where the brain's waste goes.

This article introduces the 'Onebrane' model, which resolves this century-old mystery with startling clarity."

In this newsletter, I will be explaining the onebrane (one membrane).

This is the membrane around the whole nervous system, the brain, the spinal-cord, and the nerves.

The membrane around the spine and brain is normally called the Dura and the membrane around the peripheral nerves is called the Epineurium.

So it's the combination of both of those membranes.

Using the name the onebrane simplifies things and makes it easier to understand the fluid flow dynamics.

Here is a picture of the whole nervous system.

The onebrane is the continuous membrane around the whole brain, spinal cord, and nerves.

The onebrane is an intelligent filter, and even though it acts in the same way,

There is a slight difference in its makeup around the central nervous system compared to the nerves.

They are made of the same kind of cells, but they're arranged in a slightly different way.

So also, as well as being called the Onebrane,

The membrane around the central nervous system is called the fourth filter, 

and the membrane around the nerves is called the fifth filter

Above is a topological picture of the nervous system and the onebrane.

It shows the fluid dynamics the inflows of fluid and the outflows of fluid.

To the left, the square object is the central nervous system, the brain and spinal cord,

And then the longer rectangular object to the right is the peripheral nervous system.

The black line surrounding them is the onebrane.

So in this picture, we're looking at the flow dynamics.
The arterial blood arrives in the CNS, and the Cranial Sea is filtered out of the blood by the first and second filters shown further down the page.

The Cranial Sea is used by the brain cells,

it provides oxygen and nutrients, which, when used, are converted to carbon dioxide and toxins.

This carbon dioxide and toxins are called the cranial lymph.

The venous blood cannot take back all of the cranial lymph because it's travelling very slowly.
So the venous blood takes 50%, and then the remaining 50% of cranial lymph is filtered out through the fourth filter of the onebrane.

The same procedure is true of the peripheral nerves, but the names are different.

There is the nerve sea and the fifth filter.

Hopefully, you can understand that from the picture.

This picture answers the 100-year-old question: where does all the cranial lymph go?

When you put them together as the whole nervous system,

with the onebrane as a continuous membrane around the whole nervous system.

It becomes absolutely obvious where the lymph goes because there is only one place

that it can go, and that is through the onebrane.

Be it in the central nervous system, as cranial lymph or in the peripheral nerves as nerve lymph,

there is only one place for it to go, and that is out through the onebrane.

There is a slight caveat to this in that some of the cranial lymph must flow into the nerve sea

to stop the nerve sea from flowing back into the cranial sea.

Harvey Cushing established the 'Third Circulation' theory,

Here is the same picture, but with Harvey Cushing's CST model.

All of the membranes become barriers rather than filters,

and the connection to the nerves also becomes a barrier.

Harvey Cushing had immense stature and basically overrode everybody else around.
Other scientists were scared to go against his mandate, as they might lose their funding.

Science has now followed Harvey Cushing's model for a hundred years.

Many people have hailed the Glymphatics model of showing where the brain's waste goes.
That is absolutely not true.

The Glymphatics model is based on this model and the blood-brain barrier and the blood-nerve barrier.

 The elephant in the room 

The picture does not account for where the other 50% of cranial and nerve lymph leaves.