Motion in FM

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Motion begins with a calm field

Start with a quiet field.

FM is present everywhere, uniform and continuous.
Nothing is structured yet. Nothing is strained.

In this state, the field has no preferred motion and no stored imbalance.

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Free motion

When a stable structure exists in the field, it can propagate.

If that propagation is uniform —
same direction, same speed —
the field remains unstrained.

Nothing in the medium resists this motion.

This is what free motion means in FM.

No energy is required to maintain it,
because nothing in the field needs to be reorganized.

The structure simply continues to be realized, moment by moment,
in neighboring regions of the field.

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Why free motion costs nothing

The field does not oppose motion.

It opposes change.

As long as the local organization of the field is repeated consistently,
the medium stays in equilibrium.

There is no friction,
no drag,
no loss.

Motion is not something that happens to the field —
it is something the field does.

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Acceleration: when the field is strained

Acceleration is different.

When a structure changes speed or direction,
the field can no longer repeat the same organization locally.

Parts of the structure must adjust.
Circulation patterns must deform.
Phase relations must shift.

This creates strain in the field.

The field resists this strain,
not by stopping motion,
but by limiting how quickly the change can occur.

This resistance is what we experience as inertia.

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Why acceleration costs energy

Energy is not spent to keep moving.

Energy is spent to reorganize the field.

The faster the change,
the more abruptly the field must adjust,
and the stronger the resistance becomes.

Acceleration costs energy because
the field must be strained to allow it.

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Change of direction

A change of direction is also acceleration.

Even if speed stays constant,
the structure is no longer repeating itself in the same way.

The field must continuously remain strained
to maintain a curved path.

As long as the direction keeps changing,
the strain does not relax.

Free motion exists only along straight, unchanging trajectories.

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Rotation as a special case

Rotation is fundamentally different from straight motion.

In a continuous medium,
rotation cannot be uniform everywhere at once.

Different parts must move at different speeds.

This makes rotation structurally significant.

When rotation cannot relax,
the field responds by forming stable circulating patterns — vortices.

Rotation therefore creates persistent structure in the field.

This will later become central to understanding mass, magnetism, and stability.

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Gravity and motion (preview)

A gravitational field is a permanent strain gradient in FM.

A structure moving through such a gradient
cannot remain completely unstrained,
even if it is not accelerating in the everyday sense.

This is why gravity and acceleration produce the same physical effects.

They strain the field in the same way.

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Summary

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In the Field Medium Model:

• Motion is the propagation of structure

• Free motion does not strain the field

• Acceleration strains the field

• Strain limits how quickly change can occur

• Inertia is the field’s resistance to reorganization

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Nothing moves through space.
Structures propagate as organized states of a medium.