You've been curious your entire life. This book finally keeps up with you. Addressing the profound questions often overlooked—from 'Why is there something instead of nothing?' to 'Why does money have value?'—this landmark work of popular nonfiction is designed for intelligent, curious adults ready to learn clearly and directly.

100,000 Whys: The Ultimate Encyclopedia for Curious Adults covers the full sweep of human knowledge, including science, philosophy, history, psychology, technology, nature, and the deep unknown, all presented without jargon or being dumbed down.

• Features more than 600 questions organized across 51 chapters and 9 major parts.
• Covers topics ranging from the foundations of reality to the future of artificial intelligence, and from daily life quirks to major scientific mysteries.
• Every answer utilizes a satisfying structure: a direct response, a tight explanation, a real-world analogy (where helpful), and a closing insight for genuine enlightenment.
• Written specifically for adults who find the world more interesting than most books suggest.

• Author: Levin Tillman
• Foreword By: Evelyn Havertz
• Binding: Paperback
• Language: English
• Print Length: 237 pages
• Publication Date: April 8, 2026
• Dimensions: 178 x 14 x 254mm (7 x 0.55 x 10 inches)
• Item Weight: 408 g
• ISBN 13: 979-8255554140
• Manufacturer: Independently published

If you are looking for an encyclopedia that respects your intelligence and finally provides satisfying answers to the questions you've always wondered about, this volume is written for you.