Freight boast some positively incredible efficiencies, so I'm assuming high speed rail simply loses it by holding the pedal to the metal the whole way, so to sp

Freight boast some positively incredible efficiencies, so I'm assuming high speed rail simply loses it by holding the pedal to the metal the whole way, so to speak? It's a cool comparison to me: you can either slam the accelerator/brakes for the duration of a trip or you can fight about 7 miles of head. Both are so extreme I don't really have much of an intuition on it, but I think it'd be fun to find out.