You answered that with that video you showed me.
  Other people.

  Babies born and not nurtured, die. You must remember hearing
  about that nursury in the 1930s where 1/2 the babies were
  cuddled and talked to and the other half were just fed, never
  looked at, never hugged.

  The non-hugged babies died. They had nothing to form their sense
  of self "against".