现象：你的手指甲下面有些小出血，看起来就像木材的碎片。

What you see: There are very small hemorrhages-which look like wood splinters-under your fingernails.

youdao

Again, the size is of your pinky finger nail, all within the skin so you can just turn out your information to drive, for example a replaced arm or a computer screen.

这同样与手指甲那么大，因为放在皮肤下，所以你只要发出信息既可以驱动，诸如你的假肢或者电脑屏幕等。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选