Cardinality is fundamentally integral, so if the basal layer of reality consists of discrete non-infinite configurations it should not be surprising that you se

Cardinality is fundamentally integral, so if the basal layer of reality consists of discrete non-infinite configurations it should not be surprising that you see it resolve in some integral constants. Also, physical infinities have never actually been observed so you should definitely be more skeptical of that notion just on a prior basis. Also, even if we take as given your supposition r.e. infinite types of particles, a variant of the question is just as interesting: why are only threes of them observable and why do our models seem to do a decent job of explaining reality with only threes of these infinite variants?