Devolution is only, and always, a loss of 'part of the blueprint.' If the wind blows away the plan pages for the elevator, and we build the building without it, thus relying on the stairway, it is not an evolution of the art of building.
It’s like the arrow of time. That is a figment, too.
Very well said. Don’t be surprised if you see me using your analogy in the future. But if I do, I promise to give proper attribution :o)