> implementing them physically has you rely on things like the RAM model Not at all. In fact, electronic circuitry is quite similar to "LC style" programming,

> implementing them physically has you rely on things like the RAM model Not at all. In fact, electronic circuitry is quite similar to "LC style" programming, for example we can think of both as a sort of "pipeline for data to flow through". On the other hand, Turing machines, RAM machines, etc. aren't particularly well suited to being implemented electronically. We end up introducing clock signals, addressing schemes, etc. and it all ends up very complicated, slow and power hungry. I think the only reason we put up with it at all is because electronics, especially ICs, are so incredibly small and fast to begin with, that these inefficiencies aren't too noticable at the human scale.