we still use roads and wheels, which are positively antique.

I disagree. While some amount of stability is a precursor to usability, it does hold us back from progress. I posit we hit a [complexity] ceiling and we need to do a clean rewrite. Maybe hardware guys in the back can't, but we software people surely can.

You are not disagreeing with me.

Yeah, sorry for not expressing this clearly: I believe software also ages with literal time. Because the real world changes, and software ultimately runs in the real world. Being old and being unfit for its purpose are pretty much linked when it comes to software.