To simplify further: You can think of iron as the ash of atomic reactions.

Why can't you burn ash? Because it's already been burnt and given all the energy it has to give.

The same goes for iron, it is the end result of atomic processes and doing anything with iron requires you putting more energy into it.

That's true (and I don't see steam turbines going away anytime soon) but more of our distribution system is becoming DC every year, particular high voltage transmission lines.

So over time the advantage of inherently produce three-phase power will reduce, maybe even becoming a drawback.

Then congrats you are the first of your kind biological anomaly and researchers would love to dissect your eye...or you did it wrong.