On Being with Krista Tippett

Physicist Carlo Rovelli says humans don’t understand the world as made by things, “we understand the world made by kisses, or things like kisses — happenings.” This everyday truth is as scientific as it is philosophical and political, and it unfolds with unexpected nuance in his science. Rovelli is one of the founders of loop quantum gravity theory and author of the tiny, bestselling book Seven Brief Lessons on Physics and The Order of Time. Seeing the world through his eyes, we understand that there is no such thing as “here” or “now.” Instead, he says, our senses convey a picture of reality that narrows our understanding of its fullness.

Physicist Carlo Rovelli says humans don’t understand the world as made by things, “we understand the world made by kisses, or things like kisses — happenings.” This everyday truth is as scientific as it is philosophical and political, and it unfolds with unexpected nuance in his science. Rovelli is one of the founders of loop quantum gravity theory and author of the tiny, bestselling book Seven Brief Lessons on Physics and The Order of Time. Seeing the world through his eyes, we understand that there is no such thing as “here” or “now.” Instead, he says, our senses convey a picture of reality that narrows our understanding of its fullness.

Sociologist Nicholas Christakis says we come to social goodness as naturally as we come to our bloodier inclinations. Research out of his Human Nature Lab at Yale shows that capacities like friendship, love, teaching, and cooperation exert a tremendous and practical force on us — and yet we don’t think of those behaviors as grit for what’s helped humans evolve as a species. Christakis’ science — and the passion with which he shares and lives what he learns — put goodness in refreshing evolutionary perspective.

Sociologist Nicholas Christakis says we come to social goodness as naturally as we come to our bloodier inclinations. Research out of his Human Nature Lab at Yale shows that capacities like friendship, love, teaching, and cooperation exert a tremendous and practical force on us — and yet we don’t think of those behaviors as grit for what’s helped humans evolve as a species. Christakis’ science — and the passion with which he shares and lives what he learns — put goodness in refreshing evolutionary perspective.

The Search for Extraterrestrial Intelligence — or SETI — goes beyond hunting for E.T. and habitable planets. Scientists in the field are using telescopes and satellites looking for signs of outright civilizational intelligence. One of the founding pioneers in this search is astronomer Jill Tarter. She is a cofounder of the SETI Institute and was an inspiration for Jodie Foster’s character in the movie Contact, based on the novel by Carl Sagan. To speak with Tarter is to begin to grasp the creative majesty of SETI and what’s relevant now in the ancient question: “Are we alone in the universe?”