Saturday, 27 December 2025

Interpreting Quantum Reality: 2 Many Worlds — When Nothing Is Allowed to Fail

If Bohm preserved determinacy by placing it beyond reach, the Many Worlds interpretation preserves it by making it unavoidable.

Nothing is hidden.
Nothing collapses.
Nothing ever fails to occur.

Every possibility is realised.


No Collapse, No Privilege

The Many Worlds interpretation begins with a refusal that is deceptively modest: the wavefunction never collapses.

The formalism of quantum mechanics, taken seriously, describes continuous, deterministic evolution. Collapse, on this view, is not part of the theory but an ad hoc intrusion — a gesture toward classical intuition rather than a necessity of the mathematics.

Remove collapse, and the dynamics remain smooth.
Remove collapse, and superposition never ends.

What appears to be a single outcome is, instead, a branching of the universe: every possible result occurs, each in its own world.

Determinacy is preserved not by selecting an outcome, but by actualising them all.


Branching as Ontology

In Many Worlds, probability does not mark uncertainty about what will happen. It marks uncertainty about where one will find oneself after branching has occurred.

The wavefunction does not describe possibility.
It describes plenitude.

Every term in the superposition is equally real. No outcome is privileged. No alternative is denied.

The world does not choose.
It proliferates.


The Refusal at the Core

What Many Worlds cannot tolerate is not indeterminacy, but the cut itself.

Collapse introduces a distinction between:

  • what could have happened, and

  • what did happen.

Many Worlds refuses that distinction. It treats unactualised outcomes as an embarrassment — a residue that must be eliminated. The solution is elegant in its extremity: ensure that nothing remains unactualised.

Possibility is redeemed by universal actualisation.


The Relational Question

From a relational perspective, the difficulty is not the extravagance of multiple worlds. It is the quiet elimination of instantiation.

If everything happens, then nothing is brought into being through a cut. There is no moment of actualisation, no perspectival transition from potential to event.

There are only already-existing branches and an observer who discovers which one they inhabit.

The relational challenge is therefore this:

What becomes of meaning when nothing is ever excluded?


When Actuality Becomes Cheap

Relational ontology treats actuality as costly.
An event matters because it is one among many possibilities that did not actualise.

Many Worlds removes that cost.

Outcomes no longer distinguish themselves by occurring; they differ only by location in a branching structure. Failure disappears. Loss disappears. So does commitment.

Actuality becomes cheap because it is no longer selective.


Probability Without Risk

In this framework, probability loses its bite.

Nothing risky occurs, because every alternative is guaranteed. No outcome is genuinely at stake. The future cannot disappoint, only distribute.

Probability becomes a measure of branch-weight, not readiness for instantiation.

But readiness is precisely what probability expresses in a relational frame: the structured openness of a system to become otherwise.

Many Worlds converts openness into abundance.


Determinacy at Any Price

The achievement of Many Worlds is consistency. It keeps the mathematics intact, the dynamics continuous, and determinacy unbroken.

The price is subtle but severe.

By refusing collapse, it refuses the idea that reality is brought forth through construal. It treats perspective as an index, not as a constitutive act. Worlds exist independently of being encountered.

Nothing depends on the cut — because the cut never truly occurs.


The Cost of Universal Actualisation

Relational ontology does not deny the coherence of Many Worlds.
It names what is lost when no possibility is allowed to fail.

If everything happens, then nothing happens for a reason.
If all outcomes occur, then no outcome is meaningful as an outcome.
If actuality never excludes, then becoming has no teeth.

Determinacy is preserved — but only by abolishing instantiation.

The universe becomes complete at every moment, and possibility survives only as bookkeeping.

The Many Worlds interpretation offers comfort to those who cannot bear collapse.

Relational ontology insists on something more fragile — and more demanding:

That reality is not complete in advance,
that instantiation is a cut, not a census,
and that possibility matters precisely because it can fail.

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