No you still misunderstand. The road in the analogy is the hardware itself. And the car is the OS. The OP's point was that we have to replace the hardware, because at some point you are hacking up your car to absurd degree just to be able to drive on the road of the hardware. It has nothing to do about forks in the road and the analogy to branching.
He could be arguing for anywhere from, we need to replace all our hardware now, to we need to start over with how we design chips.
