[kuahyeow]

> Modern cars work, let’s say for the sake of argument, at 98% of what’s physically possible with the current engine design. Modern buildings use just enough material to fulfill their function and stay safe under the given conditions. All planes converged to the optimal size/form/load and basically look the same.

Cars cost around X * $10,000 each. Houses cost Y * $100,000 each. The author is ignoring the economics of producing real world goods.