Gravity is just a theory. The Earth is flat. And the moon landing was filmed in a basement. Welcome to the circus of modern science denial. Do you have a relative who brings a binder of "internet research" to Thanksgiving dinner? Have you ever been trapped in a conversation with someone who insists that vaccines are a government surveillance plot, or that dinosaurs were planted by time-travelers? You aren't alone. And you aren't going crazy. In What I Learned from Science Denial, Hélder Fanha Martins offers a witty, empathetic, and dangerously necessary guide to navigating a world where facts are often treated as optional. This isn't just a book about science; it's a book about people; why we believe what we believe, why we reject evidence, and how to keep your sanity when reality is under attack. Through the lens of "Aunt Mildred", the lovable but conspiracy-prone archetype we all recognize, you will explore the psychological and rhetorical machinery that powers the denialist mind. From the "Fake Experts" selling essential oils to the "Cherry Pickers" who find the one cold day in July to disprove global warming, this book dismantles the arguments without destroying the relationships. Inside, you will discover: The Ultimate Denial Toolkit: Learn to spot the logical fallacies (like Moving the Goalposts and the Straw Man) before they derail your dinner conversation.The Psychology of Conspiracy: Understand why reality is often too boring for some people, and why the thrill of "secret knowledge" is so addictive.How to Spot "Science Nonsense" in the Wild: A field guide to recognizing ALL-CAPS MANIA, undefined buzzwords, and the dreaded "I did my own research" claim.The Survival Strategy: Practical, humor-filled advice on when to engage, when to walk away, and when to just offer a cookie and change the subject.Part psychological deep-dive, part rhetorical defense manual, and fully packed with humor, this book is for anyone who believes that facts still matter. It's time to stop pulling your hair out and start understanding the circus. Grab your popcorn, sharpen your critical thinking skills, and get ready to fight the good fight for rational thought.