Ofcourse an electric circuit cannot be «recursive» as such, because the physical ontology in which they are defined does not admit mereological (part/whole) rel

Ofcourse an electric circuit cannot be «recursive» as such, because the physical ontology in which they are defined does not admit mereological (part/whole) relations, that would be «spooky action at a distance». The signal function, being an interpretation (or specification) of the circuit, is a metaphysical ontology and is often defined in terms of itself at adjacent points in it’s domain, i.e mereological in nature, which is to say: recursive.