OpenAI reports an IID factor for the free uniform spanning forest

On every infinite connected locally finite simple unweighted graph, the free uniform spanning forest is a factor of independent identically distributed vertex labels under one root-free Borel equivariant rule.

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Understanding the problem

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On every infinite connected locally finite simple unweighted graph, the free uniform spanning forest is a factor of independent identically distributed vertex labels under one root-free Borel equivariant rule.

Why it matters

If correct, answers the general free uniform spanning-forest factor question without amenability or transience assumptions.

What counts as progress

Is the free uniform spanning forest an IID factor on every locally finite connected graph?

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