No change in Hilbert space fundamentalism

• URL: http://arxiv.org/abs/2602.20331v1
• Date: Mon, 23 Feb 2026 20:26:47 GMT
• Title: No change in Hilbert space fundamentalism
• Authors: Ovidiu Cristinel Stoica,
• Abstract summary: Hilbert space fundamentalism (HSF) states that everything about the physical world is encoded in the Hamiltonian operator and the state vector.<n>I show that HSF can't account for our observations that the physical world changes in time.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Hilbert space fundamentalism (HSF) states that everything about the physical world is encoded in the Hamiltonian operator and the state vector (as a unit vector, not a wavefunction, which requires additional specification of a configuration space, a position basis, or the position observables). That all structures needed to describe reality, including subsystems, space, fields, emerge from these. I show that HSF can't account for our observations that the physical world changes in time.

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