I Lorentz Invarience and Spontaneous Symmetry Breaking

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Spontaneous symmetry breakingI’m not sure if I understand spontaneous symmetry breaking.In the context of the Mexican hat (and marble) example, wouldn’t the actual path of the marble down the Mexican hat from the top be determined by several small factors that one would normally not consider (I.e. deformations in the hat due to manufacturing imperfections, temperature in the hat’s material differences causing or caused by the same, an imperceptible breeze from the room’s ventilation, time divots in the marble)?Could someone please explain to me why I’m horribly wrong here?How does this relate to Lorentz invariance in the context of particle invariance?

The idea of a particle altering a magnetic field doesn’t really alter the traditional understanding of Lorentz invariance does it (observational invariance)? Therefore, is this idea of particle invariance generally accepted or even useful? How is it useful?I understand there seem to be properties relating to CERN experiements worth the Higgs boson that may prove and explain spontaneous symmetry breaking?
 
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In other words, can someone explain to me how exactly Spontaneous Symmetry Breaking (as related to Lorentz Invariance and even possibly the Standard Model Extension) has validity?
 
Not an expert in QM. AFAIK, Schrödinger's equation is quite different from the classical wave equation. The former is an equation for the dynamics of the state of a (quantum?) system, the latter is an equation for the dynamics of a (classical) degree of freedom. As a matter of fact, Schrödinger's equation is first order in time derivatives, while the classical wave equation is second order. But, AFAIK, Schrödinger's equation is a wave equation; only its interpretation makes it non-classical...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
Is it possible, and fruitful, to use certain conceptual and technical tools from effective field theory (coarse-graining/integrating-out, power-counting, matching, RG) to think about the relationship between the fundamental (quantum) and the emergent (classical), both to account for the quasi-autonomy of the classical level and to quantify residual quantum corrections? By “emergent,” I mean the following: after integrating out fast/irrelevant quantum degrees of freedom (high-energy modes...
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