University of California, Davis(Credit: University of California, Davis)The crackle of electricity inside your brain has long been too complex to decode. Artificial intelligence is changing that.The woman didn't move, apart from the rise and fall of her breathing – eyes fixed in concentration, hand clenched in a fist. Words were forming on a screen in front of her, slowly piecing together into whole sentences. Sentences she couldn't say out loud.The 52-year-old woman had been paralysed by a stro...