The consumer technology trends that will matter most in 2013

If you’re lucky and know where to look, you can see the future in Las Vegas in January. Every year, hundreds of thousands of people clog Las Vegas for an annual orgy of electronic gadgets known as the Consumer Electronics Show. It’s crowded, noisy, and so flooded with TV screens, B-list celebrities, and sparkly cellphone cases that it’s hard to find any real innovation.