It’s not supply and demand; it’s demand and supply.
One of the blogs I really like to read is Evonomics. It has a really great essay on an Arabic economist from the 14th century and highlight the similarities and differences between him and Adam Smith, who is usually the person Western textbooks cite as the father of modern economics. Here is the article: https://evonomics.com/amazing-north-african-scholar-beat-adam-smith-half-millennium/