![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
Brain interventions call attention to something hard to fathom & often overlooked: what we like, what we are like, who we are, in some very real sense, are dependent on the motion of matter & ebb & flow of electrical signals in our brains, just like any other physical devices.