[kosh2]

> There is no separation of code and data on the wire - everything is a stream of bytes. There isn't one in electronics either - everything is signals going down the wires.

Would two wires actually solve anything or do you run into the problem again when you converge the two wires into one to apply code to the data?

[TeMPOraL]

It wouldn't. The two information streams eventually mix, and more importantly, what is "code" and what is "data" is just an arbitrary choice that holds only within the bounds of the system enforcing this choice, and only as much as it's enforcing it.