Deng Chao joined Xiaohongshu in 2013 as employee number three and is responsible for Xiaohongshu's product design. His architectural background has shaped his product design thinking, infusing it with both humanism and rationalism. Through the 9 years of Xiaohongshu's product iterations, he has been straddling "art" and "science" to explore the fluidity of the world, pursuing product design solutions that are practical but forward-looking. The product thinking and design concepts advocated by Deng have been woven through the Xiaohongshu app from day one, influencing its growth from zero to hundreds of millions of users as it connects diverse lifestyles from around the world.