Although the standard model treats the electron as a point-like particle, its rest energy (~0.511 MeV) necessarily implies that it must occupy a certain physical space—i.e., that it is confined within some kind of volume.

Physics has estimated various values for its “effective size,” such as the so-called classical electron radius (~2.82 × 10⁻¹⁵ m), although experimental bounds place its actual size below 10⁻²² m. In any case, if the electron has energy and that energy is quantized, then it cannot be perfectly homogeneously distributed within its confinement, regardless of the specific volume.

Quantized energy implies discrete distribution, which in turn suggests that the electron must have some kind of internal structure. This structure might not be mechanical in the classical sense, but rather energetic or spatial—such as an internal distribution of layers or regions with varying energy densities.

Would it be reasonable to consider that such an internal energetic structure could be related to properties like electric charge or spin?

I would greatly appreciate any critical thoughts or references on this idea, especially if there are current approaches exploring similar questions from other perspectives.

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