>>106329426
Anon, your ignorance is showing.

Systems are objectively more efficient now. They cared so little about measuring efficiency back then that they only came up with a system in 1992.

And the huge metal hunks that american companies made and still made had only 2 settings: full power on, and off. Remember your lights dimming when the system kicked on? Contrast that with asian systems, which can run at any percent between 10% and 100% power.