> The age of the restriction is irrelevant.

Not according to the comment I was responding to: "Has anything changed since the sacred texts were written or we just going to keep acting as though we can never adjust the laws."

There's more than one bit of flow chart here.

Things can change in a way that's covered by the Constitution. Say, technology that makes Fourth Amendment violations easier to do; still potentially covered!

Things can change in a way that's not covered by the Constitution. Now you need an amendment.

The Fourth Amendment is quite broad and can thus handle all sorts of change.