
In "Extra Life," Steven Johnson reveals how human lifespans doubled in just a century - not through lone geniuses but collaborative networks. President Obama praised this eye-opening exploration of vaccines, chlorination, and even seatbelts that transformed our mortality. What unexpected innovation will save millions next?
Siente el libro a través de la voz del autor
Convierte el conocimiento en ideas atractivas y llenas de ejemplos
Captura ideas clave en un instante para un aprendizaje rápido
Disfruta el libro de una manera divertida y atractiva
In 1800, a newborn child could expect to live just thirty-five years. Today, that number has doubled. We've each been gifted roughly twenty thousand extra days-an entire second life that our ancestors never knew. Yet we barely notice this miracle. We complain about aging, fear death at seventy, and take for granted that most children will survive to adulthood. But this wasn't inevitable. For ten thousand years, human life expectancy remained trapped beneath an invisible ceiling. One-third of children died before reaching adulthood whether they lived in ancient Rome or medieval London, in agricultural villages or hunter-gatherer bands. What shattered this ancient pattern? The answer isn't what you'd expect. It wasn't brilliant doctors or lone scientific geniuses. Instead, it was an unlikely network of activists, bureaucrats, journalists, and ordinary people who refused to accept that early death was humanity's fate.
Desglosa las ideas clave de Extra Life en puntos fáciles de entender para comprender cómo los equipos innovadores crean, colaboran y crecen.
Destila Extra Life en pistas de memoria rápidas que resaltan los principios clave de franqueza, trabajo en equipo y resiliencia creativa.

Experimenta Extra Life a través de narraciones vívidas que convierten las lecciones de innovación en momentos que recordarás y aplicarás.
Pregunta lo que quieras, elige la voz y co-crea ideas que realmente resuenen contigo.

Creado por exalumnos de la Universidad de Columbia en San Francisco
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
Creado por exalumnos de la Universidad de Columbia en San Francisco

Obtén el resumen de Extra Life como PDF o EPUB gratis. Imprímelo o léelo sin conexión en cualquier momento.