WE COULD BRAG. We could say our 30th annual list of the most transformative products and discoveries required trucks full of experts, hours of toil, and countless friendship-ending debates. That's true, but you just want the good stuff. So read on. A robot just made me french Fries. Delicious, they cooked for four minutes less than the instructions dictated. One minute less, they'd've been soggy. A few more, burnt. An eagle-eyed artificially intelligent Oven made the timing and temperature calls. My contributions: Arrange fries on tray, slide tray into oven, acquire ketchup. (Invent ketchup drone?) The smart cooker on this list, which we’ve nicknamed the Millennial Oven, perfectly follows...