Last month, longtime New Yorker staff writer Michael Specter released a brand new audiobook with our friends at Pushkin. It’s called “Higher Animals: Vaccines, Synthetic Biology, and the Future of Life,” and it’s an inspiring account of the emerging field of synthetic biology — a field where scientists combine chemistry, engineering, and computer science to develop new drugs and therapies for treating diseases of all sorts. This month, Steven Johnson, a frequent guest on this show and a contributing writer for The New York Times Magazine, is publishing a brand new audiobook of his own. It’s called “Immortality: A User’s Guide,” and it was produced by ... us! (You can get a copy here.) The premise is this: we might well be on the cusp of a revolution in the science of aging and we are not prepared for the consequences. You can see the overlaps, right? So we decided to get Steven and Michael on the horn to talk about breakthrough technologies, radical life extension, and the future of our species.

What do your five senses — sight, hearing, smell, taste, and touch — have to do with happiness? According to Gretchen Rubin, a great deal. The world around us, she says, has the potential to dazzle, to entertain, to trigger a state of rapture. If only we pay attention. Today on the show, she shares with Rufus the tools she's developed to delight in the physical world. Gretchen's new book is "Life in Five Senses: How Exploring the Senses Got Me Out of My Head and Into the World." You can learn more at https://gretchenrubin.com/books/life-in-five-senses/ And be sure to check out Gretchen's audio apothecary on Spotify! The Next Big Idea is a proud member of the LinkedIn Podcast Network. Sign up for our LinkedIn newsletter where Rufus takes listeners (like you) behind the scenes of the show. Have you downloaded The Next Big Idea app? It has hundreds of book summaries and dozens of e-courses, plus ad-free versions of this podcast and invitations to live author Q&As.