Student or Learner
What is "it doesn't" saying in the following?
A desire to better the world is predicated partially on empathy and compassion. The good news is that we now know that these prosocial behaviors are hardwired into the brain. The bad news is that these behaviors are wired into the slower-moving, recently evolved prefrontal cortex. But the amygdala evolved long ago, in an era of immediacy, when reaction time was critical for survival. When there's a tiger in the bush, there isn't much time to think, so the brain takes a shortcut: it doesn't.
Does this mean "the brain doesn't think, but react automatically"?