translation.en: They want to compress the information -- they just want to send the changes, what's new in the image, and so on -- and that is how your eyeball is able to squeeze all that information down to your optic nerve, to send to the rest of the brain.
translation.zh: 人们想要压缩信息—— 人们只想发送新发生改变的图像，诸如此类—— 而那就是你的眼球如何 能把所有捕捉到的信息传送到你的视神经 再传送给大脑的其余部分