translation.en: Middle World -- the range of sizes and speeds which we have evolved to feel intuitively comfortable with -- is a bit like the narrow range of the electromagnetic spectrum that we see as light of various colors.
translation.zh: 中观世界中有关大小和速度的范围 在我们的进化过程中都会让人在直觉上感到是舒适的。 这有点像是我们在肉眼能够观察到的各种颜色