Have you ever wondered why things are the way they are? Or why people do the things they do? That's what philosophy is all about. In the 20th century, people were really interested in understanding the world around them and figuring out what it all means.
One big idea that people talked about a lot in 20th-century philosophy was existentialism. This is a very fancy word that means thinking about what it means to be alive and what your purpose is. People like Jean-Paul Sartre and Albert Camus wrote about this a lot. They believed that we are all free to make our own choices and that there is no one right way to live your life.
Another idea that was really popular in the 20th century was called postmodernism. This means that people didn't think there was one objective truth or one way of looking at things. Instead, they believed that everyone has their own perspective and that it's important to listen to other people's ideas and experiences.
One philosopher who talked a lot about postmodernism was Jacques Derrida. He believed that language is really important and that it can shape the way we think about the world. He also thought that there are always multiple ways of interpreting something and that we should be open to different interpretations.
Overall, 20th-century philosophy was all about trying to understand the world around us and figure out what it means to be human. People talked about big ideas like existence and truth and they tried to learn from each other's perspectives.