In "A Short History of Nearly Everything," Bill Bryson discusses the perspective that Earth had a cooler climate in its past due to a weaker sun. This idea challenges the prevailing notion that historical periods were primarily warmer. Bryson humorously notes that biologists have whimsically labeled this phenomenon as the "Chinese restaurant problem," referencing the dimness of the sun at that time.
This playful terminology highlights the complexity and unpredictability of scientific theories around the sun's intensity and climate. Bryson's commentary invites readers to consider the intricacies of Earth's history and how our understanding evolves over time, showcasing the blend of scientific inquiry and humor in exploring natural phenomena.