At first blush, the new design doesn’t seem markedly different. It’s got a black background now, to match what people are used to on their phones, tablets, and TV sets. Those little arrows that scroll through the service at the speed of a glacier are still there, but now they jump between entire rows of choices. And the service does a much better job of letting you see information about a show as you click around, instead of accidentally playing something you only wanted to know more about. Under the hood though, the changes are the culmination of years of research aimed at gleaning every nuance about how humans hunt for things to watch. Netflix has been tossing out breadcrumbs in various configurations, and seeing how we gobble them up. This is the newest handful for us to taste test, and it comes with the hope that we’ll feast.