In the 1960s, mathematician Benoît Mandelbrot began exploring a concept he initially called self-similarity—geometric forms whose parts resemble the whole. A simple example is a straight line: any segment of it is also a straight line. But this kind of geometry also appears in nature, like in the head of Romanesco broccoli. Each floret forms a spiral that mirrors the spiral arrangement of the florets on the entire head. In 1975, Mandelbrot named this phenomenon a fractal. It turns out fractals are everywhere in nature: the way rivers branch into tributaries, or how a tree trunk grows branches, which then grow twigs. More recently, researchers have suggested that human brains recognize these fractal patterns—sometimes subconsciously—and because we associate them with nature, seeing fractals can evoke similar calming effects as being in a natural environment. So, why discuss fractals on a podcast about sustainable architecture and design? Because fractals are common in pre-modern architecture—found in the ornaments of Gothic cathedrals and the niches of medieval mosques—and today, many designers apply fractal principles to objects and materials, creating products that evoke the same sense of well-being as natural environments. In this episode of Deep Green, created in partnership with Momentum and recorded live from NeoCon 2025, host Avi Rajagopal sits down with Dr. Richard Taylor, whose research underpins our understanding of fractal patterns’ impact, and Anastasia and Martin Lesjak of 13&9, who apply this research in their designs—including a new wallcovering collection for Momentum called Renaturation. Resources Momentum Renaturation Collection 13&9 Design Dr. Richard Taylor’s Research This episode was produced in partnership with Momentum and recorded live in the NeoCon Podcast Lounge Powered by SURROUND. Thank you to our Lounge sponsor, Material Bank, and product partners: HÅG, Stylex, KI Wall, and Turf. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.