To add confusion; induction is drastically more efficient than resistance heating; heat pumps are drastically more efficient than gas or traditional heat.
So the communication problem is also one of changing technology. Technologies that adults learned 30 years ago are not the same as those today.
Resistance heating is 100% efficient at heating the element, but to heat the pan, it has to transfer through the pan/element interface.
100% isn't the highest efficiency you can get though. It's even more efficient to use the electrical energy to concentrate existing heat than it is to create new heat
So the communication problem is also one of changing technology. Technologies that adults learned 30 years ago are not the same as those today.