Magnet gens ARE possible. What's impossible is replacing everything that runs the way it already does without all the rich people who are in charge stopping people so they don't lose their profits. Do you think they care about making lives easier? They couldn't give a rat's ass.
You can very EASILY make one to run one light bulb. Megnetic flashlights already exist and you only have to shake that one! Derp! THEREFORE many, can run more. Larger ones or those hooked in parallel can run a fridge or a stove.
FURTHERMORE, it would be ILLEGAL to hook one of these up to your home without proper testing, permits, and change in household building legislation.
Yes you need a fuckin switch, otherwise how do you turn the gen off!? Yes you need a battery (or hand crank like old cars) ONLY to get the momentum up to the point where the magnetic force to be able to take over and keep it going ON IT'S OWN - Just like pedaling a bike in higher gear: The faster you go, the easier it is! Then you disconnect the battery. Even IF you had to recrank it every 6 hrs or so, IT'S STILL FREE ENERGY!
The switch adds resistance to the axel to bring the momentum to a place where the magnets do not have enough force to keep it going.
We use to use tiny steams of water to push giant wooden water wheels for power in mills. The force of that water is no where near as powerful as some NON-ELECTRO magnets (Such as the ones in IDE hard drives).
You think the gas, hydro dam, and nuclear companies want this TECH in the world!? No, and that's who discredits this tech the most. That and gullible sheep like those close-minded individuals that only help to make the world a worse place to live.
But that's ok, cuz inventors are always being kicked when they're down. Nikola Tesla is a famous one that got swept under the rug by Thomas Edison. Even Einstein's theories were seen as mad and unfounded in his time. Keep a fucken open mind people or you're going to lose it. Read a goddamn book!