Today is the official publication date of my new book ‘DON’T BELIEVE WHAT YOU THINK‘. It is essentially a crash course in critical thinking. To give you a flavour, here is an excerpt from its preface:

… So-called alternative medicine (SCAM) is a complex and controversial subject. Many people pretend to be experts in SCAM, but few know even the basic facts about it. Many consumers talk about SCAM, but few can be bothered to look behind the smokescreen of misleading claims. Many feel emotionally attached to SCAM, but few manage to think rationally about it. Many religiously believe in SCAM, but few show concern about the evidence. Many are desperate for help, but few seem to mind getting ripped off…

Enthusiasts of SCAM tend to hope for less side-effects, symptom relief, a cure of their condition, improvements in quality of life, and protection from illness. Such high expectations are usually based on misinformation, often even on outright lies. The disappointing truth is that not many SCAMs are truly effective in treating or preventing disease, and that none is totally harmless. In fact, the dangers of SCAM are multi-fold and potentially serious:

  • harm due to adverse effects such as toxicity of an herbal remedy, stroke after chiropractic manipulation, pneumothorax after acupuncture (see chapter 3.2);
  • harm caused by bogus diagnostic techniques (see chapter 4.4);
  • harm of using materials from endangered species (see chapter 3.15);
  • harm through incompetent advice by SCAM providers (see chapter 4.5);
  • harm due to using SCAM instead of an effective therapy for serious conditions (see chapter 4.5);
  • harm due to the high costs of SCAM (see chapter 3.8);
  • harm due to SCAM undermining evidence-based medicine (see chapter 5.4);
  • harm caused by inhibiting medical progress and research (see chapter 5.1).

In this book, I address these issues in detail and explain how consumers get manipulated into believing things that are evidently wrong. Using plenty of real-life examples, I outline how the constant flow of misinformation, coupled with motivated ignorance, motivated reasoning, and cognitive bias can produce a form of wishful thinking that is detached from reality. In the interest of my readers’ health, I aim to correct some of these false beliefs and fallacious thought processes.

My book consists of 35 concise essays each of which addresses one commonly held belief about SCAM. The essays can be read as stand-alone articles; occasionally, this necessitates a degree of repetition which, however, is minimal. The text avoids technical jargon and is therefore easy to follow. For those who want to dig deeper into the scientific evidence, links are provided to numerous papers that might prove to be helpful. A glossary is added at the end to explain some terms that might be unfamiliar.

This book is meant to stimulate critical thinking not just about SCAM, but also in a more general way. Science deniers employ similar techniques no matter whether they focus on health, climate change, evolution or other subjects. Exposing their techniques for what they are is thus important.

  • They ignore the scientific consensus.
  • They cherry-pick their evidence.
  • They rely on poor quality studies, opinion and anecdotes.
  • They invent conspiracy theories.
  • They defame their opponents.
  • They point out that science has been wrong before.
  • They say, ‘science does not know everything’.

Critical thinking is the best, perhaps even the only protection we have from being fooled and, crucially, from fooling ourselves. If my book enables you to question nonsense, call out untruths, correct falsehoods, ridicule stupidity, and disclose fake news, it surely was worth the effort.



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