According to the text, what is the most significant conceptual jump in the entire history of speed control technology?

Answer

Shifting from driver preference to regulatory compliance

The shift where ISA requires the driver to accept that the vehicle will actively prevent them from accelerating past a legal limit, even if desired, represents the most significant conceptual jump toward regulatory compliance.

According to the text, what is the most significant conceptual jump in the entire history of speed control technology?
inventionsystemregulationspeed limittraffic