[MUSIC] Hi, this next video is a kind of autobiographical thought about natural environments. Natural environments are a really powerful place to find inspiration for architectural, and for technique and technology. I have been diving since I was eight years old. I learned to dive in Tel Aviv from where I am from and Tel Aviv has an amazing life, an amazing sea life. I fall in love with many of the life that I found around, but specifically I love one fish, the puffer fish. It's a kind of advanced technology, a really advanced technology. If you analyze it, it can expand to protect against predators, and even it has this kind of spines that will make its size much, much bigger. And it will make predators to go away. Usually, puffer fishes were at the entrances of caves. But if you think is it possible to have a similar technique for architecture? Imagine to design a kind of expandable building that can compress and expand. That could be amazing. In those caves where the puffer fishes used to live, around them sometimes you can find another amazing fish, in this case the cuttlefish. The cuttlefish has a kind of camouflage skin that can change its color and its texture to hide against predator. But if this technique doesn't work, they have another tool to kind of escape really fast, a kind of turbine that they have inside the cuttlefish. It's much better than the turbines that we can found in any boat. It doesn't leave any kind of bubbles around. So is it possible to design a building with a camouflage skin that can change its color, for example, to protect against sun radiation or to enhance a type of iconic view of the building? Probably yes, I think so. Then when I finished diving, I used to go out to the sea, and to lay down in the rocks. And when you look around, you will see lot of limpet. Limpets has another amazing technology. They work with a kind of vacuum effect, and it's almost impossible to take them off the rocks. Imagine is it possible to design or to develop a similar technology, rather than using bolts just by biting effect to support all the different construction system that we have in a building. That could be amazing. So remember, natural environments are really powerful place. You probably can design expandable building like a puffer fish, with a camouflage skin that can change to enhance or to protect against sun radiation, and at the same time, all these construction systems can be supported by the limpet technology, by the backing effect. That could be amazing. I'm sure it is possible. So I encourage you to think about it. So next time that you see a butterfly, when you see an armadillo, look at them like a really high technology. You will learn a lot from them. But never copy them, just like its shape. Copy its behavior, its ideas. We don't make buildings with the shape of a fish. We can make buildings with a technology of a pufferfish, it's something completely different. So in next video, I will explain to you how architects inspire in the natural environment to find new designs or new opportunities to make amazing buildings. [MUSIC]