This podcast episode explores English idioms inspired by dinosaurs and how they are used to talk about changes in the world. The hosts discuss the idiom "go the way of the dinosaur" to signify obsolescence and highlight the rapid pace of change in recent times. They also explore idioms to acknowledge lack of knowledge or awareness of current events, such as "behind the times" and "yesterday's news." The section warns about the potential pitfalls of using these idioms to describe others. The hosts emphasize the importance of kindness and connection when using idioms. They conclude by discussing how idioms can help people connect with each other by sharing common experiences of being behind the times.