The key is this: Our visual systems are good at detecting blobs and edges, but they're really bad at what our world has become, which is screens with lots and lots of data.
关键点是：我们的视觉系统 善于探测障碍和边缘， 但是它们并不擅长观察我们目前的世界， 一个充满大量数据的屏幕的世界。