OK ok Ok hold on a second here.
First of all, while EMPs are theoretically possible, and have been proven on a small scale, it takes a shitpile of energy. Something with enough power to take out *all electronic devices* on the scale of a country etc would also have to be intense enough that it would destroy all kinds of biological material, not to mention frying brains, hearts, etc which all are effected by electrical signals (TMS on a large scale lol, or like how defibrillators work). The destruction would be alot more than just electronic stuff.
But that's all irrelevant b/c they really haven't hinted it was an EMP, from what I gather part of the point of the show is people trying to figure out what happened. If I understand right it's more like "the power won't come back" whatever the hell that means. An EMP is a one-time deal.
But I can look past all that.
What dosn't make sense is, once the power goes out, shit stops working... what the fark happened to the hundreds of thousands of engineers, or electricians, or scientists or anybody who knows how to build things and fix them? I mean come on, in 10-15 years, nobody figures out they can just rebuild things? All you need to make electricity is a water source, a couple of electrical plates, a big drum and a lot of wire.
Yes, sure shit will be crazy for a few weeks, a month even. But it's just stupid to think that nobody could create power, even on a small scale.
And yeah, why aren't there more simple machines being used?