Jean-François Lyotard was a French philosopher who was born in 1924. He is famous for his ideas about how society works. He believed that science and technology were changing the way people think, and that these changes would result in a more complex, diverse and open way of understanding the world. He also thought that traditional ways of thinking, such as hierarchies and big ideas, would become less important. He wanted to encourage people to explore their own ideas and express them without worrying about fitting into the traditional ways of thinking. His work has been influential in how we think about society today.