You may have heard about Maslow’s hierarchy of needs, which sees human development as a sort of a pyramid, with survival needs at the bottom, social and emotional needs in the middle, and “self-actualization” at the top. Psychologist Scott Barry Kaufman thinks we can do better. Instead of striving to become our best selves, we can strive to connect with the world beyond ourselves — to truly transcend.

Birds do it, bees do it, even fishes in the seas do it. So why do we have such a hard time when people migrate from one place to another? Science writer Sonia Shah presents the evidence that migration is central to the human story -- and it just might save us from what’s coming next.