What is the definition of Millennium Engineering?

Millennium engineering, folks, is like a cross between a master builder and a mad scientist who's just discovered that 1000 years of blueprint obsolescence is more efficient than a 2000-year-old blueprint. It's the art of constructing marvelous contraptions using the knowledge that was lost to the sands of time, but with a dash of modern tech wizardry.

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Here's an unsettling example sentence: "With millennium engineering, we decided to retrofit the ancient Roman aqueducts with self-driving drones to deliver water to the skyscrapers, making them look like they just stepped out of a sci-fi movie."