The high speed is the "overelaboration". High-speed rails in many countries can reach 200mph. A 600mph train may be 3x as fast, but the marginal utility is pret

The high speed is the "overelaboration". High-speed rails in many countries can reach 200mph. A 600mph train may be 3x as fast, but the marginal utility is pretty low to me compared to increased cost and reduced capacity.