How We Got to Now
Steven Johnson
16 min
7 Key Points
4 RateWhat's inside?
Explore the six pivotal innovations that shaped the modern world and understand their profound impact on our everyday lives.
You'll learn
1. The story and effects of six big game-changers: glass, cold, sound, clean, time, and light.2. How these big ideas shaped today's world.3. How different innovations are linked and their combined effect on us.4. The journey of innovation and its surprising connections.5. Why knowing history is key to creating future innovations.6. How to think smart about tech and innovation's impact on our lives.Key points
01Simple things can lead to big inventions
In Steven Johnson's captivating exploration of innovation, he dives into the idea that the ordinary things we take for granted often have extraordinary origins. This isn't just a whimsical thought, but a deep insight into how progress and innovation work. Let's dig a bit deeper into this. Johnson uses stuff we use every day - mirrors, telescopes, phones, air conditioning, and lights - to illustrate his point. We use these things without giving them much thought, but each one has a fascinating tale of evolution from a simple idea or object to the essential tools we can't live without today. Take the mirror, for example. It might seem like a straightforward object, but it actually started as glass-adorned jewelry. And the telephone, something we can't imagine living without, was sparked by the echoes in a cave. These examples show that the journey to big inventions often begins with simple, even ordinary, things. Johnson explains that inventing isn't a straight path. It's not about having a genius idea and then making it happen flawlessly. It's more about finding a solution to a problem, and in the process, discovering other problems that need fixing. This cycle of problem-solving is what fuels innovation. Take air conditioning, for instance. It was first invented to cool down factories. But as the technology got better, it became clear that it could also make homes and offices more comfortable, leading to a revolution in how we design buildings and plan cities. This idea of solving one problem only to find another isn't just relevant to tech inventions. It's a basic principle of evolution, where one change leads to another, creating a chain reaction that allows species to adapt and thrive in changing environments. In a nutshell, Johnson's exploration reveals the intriguing and often surprising paths that lead to big inventions. It shows us that ordinary things aren't always as simple as they seem, and that by fixing one problem, we might just stumble upon solutions to many others. This insight can help us appreciate the inventions we use every day and encourage us to look at the world with a more curious and inventive eye.
02Glass and mirrors came from a grain of sand
Let's take a moment to think about something as simple as sand. You know, that stuff you find at the beach, or in a kid's sandbox. It's pretty basic, right? But did you know that from this humble grain of sand, we've managed to create something as amazing as glass and mirrors? It's a pretty wild journey, so buckle up and let's dive in. First off, let's talk about what sand really is. The kind of sand we're interested in is called silica sand, and it's the main ingredient in making glass. When you heat this sand up to super high temperatures, it melts and turns into a liquid. But here's the cool part - when it cools down, it doesn't go back to being sand. Instead, it turns into this clear, shiny stuff we call glass. Now, let's hop in our time machine and head back to the ancient deserts of Libya. Picture a lightning strike hitting the sand, causing a crazy amount of heat. This heat was so intense that it melted the sand and then turned it into chunks of glass. This natural glass, called obsidian, was found by early humans who used it to make sharp tools and pretty decorations. Next stop, ancient Egypt. The Egyptians were pretty smart cookies. They figured out that if you add certain minerals to the sand, you can make glass in all sorts of different colors. This colored glass was super valuable and was used to make jewelry for the big shots, like Pharaohs. Fast forward a bit to the Romans. They took glassmaking to a whole new level. They set up these awesome glass workshops in a place called Murano in Venice. Here, talented artists made all sorts of fancy glass items. Glass wasn't just useful anymore, it was a form of art. But the story doesn't stop there. In the Middle Ages, some clever clogs discovered that if you put a thin layer of metal on one side of a flat piece of glass, you get a mirror. This was a game changer for things like personal grooming and fashion, and it also had a big impact on art and science. Then, in the 17th century, we hit another big milestone with the invention of the microscope and the telescope. These gadgets, made possible by carefully grinding and polishing glass lenses, let us explore new worlds. Microscopes let us see tiny things like cells, and telescopes let us look at far away things like stars and galaxies. So there you have it. From a simple grain of sand in the Libyan desert, we've ended up with a world full of glass - in our windows, our jewelry, our scientific tools, and even our space telescopes. It's a pretty amazing journey, don't you think?
Continue reading with LeapAhead app
Full summary is waiting for you in the app
03We got fridges from blocks of ice
04The idea of the telephone dates back to Neanderthals
05Your subway ride? Thank sewers for that
06From whales to lightbulbs, artificial light has changed our lives
07Conclusion
About Steven Johnson
Steven Johnson is an American author, popular science writer, and media theorist known for his works on technology, complexity, and innovation. His books, including "How We Got to Now," explore the intersection of science, technology, and personal experience. Johnson co-founded the online magazine FEED and has contributed to many publications.
