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Kamil Zwolski, PhD

Even the Smartest Minds Fall for Flawed Thinking

Imagine making a critical decision—whether in business, relationships, or life—only to realize later that you were blinded by biases and fallacies you never even knew existed. What if the very way you process information is setting you up for failure without you realizing it?

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Even the Smartest Minds Fall for Flawed Thinking

Imagine making a critical decision—whether in business, relationships, or life—only to realize later that you were blinded by biases and fallacies you never even knew existed. What if the very way you process information is setting you up for failure without you realizing it?

You’re not alone. Even the sharpest thinkers—CEOs, scientists, and world leaders—succumb to cognitive traps. Why? Because the brain’s default mode is not rationality; it’s survival. It craves shortcuts, quick judgments, and mental ease. But in today’s complex world, relying on these instincts can be costly.

The Hidden Traps of Your Thinking: Do Any of These Sound Familiar?

  • You struggle to change your mind even when confronted with new evidence. (Confirmation Bias)

  • You make rushed decisions based on the most available information, not the most accurate. (The Availability Heuristic)

  • You overestimate your abilities, believing you know more than you do. (Dunning-Kruger Effect)

  • You stick with bad investments, relationships, or projects because you’ve already invested too much. (Sunk Cost Fallacy)

  • You fall for persuasive arguments that sound convincing but are logically flawed. (Logical Fallacies)

If any of these resonate, your thinking is working against you. But there’s a way to fix it.

Introducing: Critical Thinking Mastery – Biases, Logical Fallacies & Fixes

A complete system for mastering rational thought, identifying biases, and breaking free from faulty reasoning. This course will transform the way you think, decide, and analyze information.

What You’ll Get in This Course

With the Critical Thinking Mastery: Biases, Logical Fallacies & Fixes course, you’re not just watching lectures—you’re gaining a set of structured, practical tools designed to build your knowledge step-by-step. Here’s what’s included:

  • Printable Handouts: All key slides are provided in printable format, making it easy to review core information on the go.

  • Study Guides: Get short-answer quizzes, essay questions, and glossaries for each section to deepen your understanding.

  • Multiple Choice Quizzes: Test your progress with quizzes for each topic and keep track of your mastery as you move forward.

  • Audio Overviews: Reinforce your learning with audio summaries to expand your knowledge on each section.

  • Helpful Practice Activities: Practice what you learn with step-by-step practical exercises

What You’ll Learn

Part 1: Why Critical Thinking is Harder Than You Think

  • The shocking reason why even highly intelligent people make irrational decisions.

  • How your brain operates in two different thinking modes—System 1 (fast, intuitive) vs. System 2 (slow, rational) and why they often clash.

  • The hidden burden of cognitive load—how your brain takes shortcuts that lead to mistakes.

Part 2: The 10 Most Dangerous Cognitive Biases

  • How biases like Confirmation Bias, Anchoring, and the Framing Effect manipulate your thinking.

  • Why Overconfidence Bias (fueled by the Dunning-Kruger Effect) makes people think they know more than they do.

  • How the Sunk Cost Fallacy keeps you trapped in bad decisions.

Part 3: The 10 Most Dangerous Logical Fallacies

  • Learn how Straw Man, Ad Hominem, and Slippery Slope arguments distort reality.

  • Discover why appeals to emotion, authority, and popularity lead people astray.

  • Recognize fallacies instantly and stop being fooled by manipulative arguments.

Part 4: How to Train Your Brain for Rational Thinking

  • Metacognition: How to think about your own thinking to avoid blind spots.

  • The Pre-Mortem Strategy: A powerful tool used by elite decision-makers.

  • The Steel Man Technique: The antidote to weak arguments and cognitive bias.

  • Bayesian Thinking: How to update your beliefs rationally as new information emerges.

  • The Debiasing Checklist: A foolproof method for making better decisions.

Who This Course is For

  • Professionals who want sharper decision-making skills.

  • Entrepreneurs who need to spot risks and opportunities clearly.

  • Students and academics seeking intellectual rigor.

  • Anyone who wants to stop falling for misinformation, emotional arguments, and cognitive traps.

Take Control of Your Thinking Today

Your brain is the most powerful tool you have—but only if you know how to use it properly. This course will give you mental clarity, intellectual resilience, and the ability to think better than 99% of people.

Are you ready to master your mind?

Enroll Now – Unlock Rational Thinking & Bulletproof Decision-Making

From My Students:

  • "The course was very informative and helpful, and I will apply the knowledge I gain. The lecturer was incredibly fantastic. He explain all the concepts and the definitions of all the topics."

  • "Dr. Zwolski truly has teaching skills. He is a straightforward professor and his videos are both interesting and valuable."

  • "The course is really informative and provides a very in-depth analysis of several complex topics which otherwise would have been quite difficult to understand."

  • "The instructor is a good lecturer. Interesting material presented clearly and concisely."

  • "The lectures have been made very simple to understand. Kamil is doing an amazing job. "

  • "Crisp and clear videos, to the point, can be watched easily on the mobile phone."

  • "Wow. If your reading the comments and debating on whether or not to take this course,TAKE IT. If you read The Economist, Forbes, taking classes on International relations, or stationed on a foreign base, this class is for you. After this you should be able to decipher mainstream media news outlets. Semper Fi. "

Enroll now

What's inside

Learning objectives

  • Understand why even highly intelligent individuals fall into cognitive biases and logical fallacies.
  • Define the difference between system 1 and system 2 thinking and how they influence decision-making.
  • Identify the 10 most dangerous cognitive biases and how they distort perception.
  • Understand how the dunning-kruger effect leads to overconfidence and poor judgments.
  • Define key logical fallacies that weaken arguments and obscure the truth.
  • Identify manipulative persuasion tactics used in media, politics, and everyday conversations.
  • Understand the principles of bayesian thinking and how to update beliefs rationally.
  • Define cognitive forcing strategies to counteract bias and improve problem-solving.
  • Identify techniques like the steel man and pre-mortem strategies to strengthen analytical thinking.
  • Understand how to create a personalized debiasing checklist to make better decisions consistently.

Syllabus

Why Critical Thinking is Harder Than You Think
Why Do Smart People Make Irrational Decisions?
Quick Quiz test
Dual-Process Theory – System 1 vs. System 2 Thinking
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Traffic lights

Read about what's good
what should give you pause
and possible dealbreakers
Offers practical tools and strategies, such as the Pre-Mortem Strategy and the Steel Man Technique, that are used by elite decision-makers to strengthen analytical thinking
Explores the Dunning-Kruger Effect, which helps learners understand why overconfidence can lead to poor judgments, a common issue in professional and academic settings
Examines cognitive biases like Confirmation Bias and Anchoring, which are highly relevant to understanding how our minds can be manipulated in various contexts
Includes multiple-choice quizzes, study guides, and audio overviews, which are helpful for reinforcing learning and tracking progress, especially for students and academics
Teaches Bayesian Thinking, which is a method for updating beliefs rationally as new information emerges, a valuable skill for professionals and academics alike
Requires learners to understand the difference between System 1 and System 2 thinking, which may require some initial effort for those unfamiliar with cognitive psychology

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Reviews summary

Critical thinking mastery: biases & fallacies

According to learners, this course provides a clear and valuable introduction to identifying and overcoming cognitive biases and logical fallacies. Students find the instructor's explanations excellent and easy to understand, making complex topics accessible. The course offers practical tools and strategies that can be applied immediately to improve decision-making and analyze information critically. Reviewers frequently praise the well-structured content and useful supplemental materials like handouts and quizzes. Some note it's particularly beneficial for beginners or those seeking a solid foundation, although a few intermediate learners found certain sections less in-depth than anticipated.
Course provides a solid foundation.
"Good overview of biases and fallacies."
"The basics are covered well..."
"I gained a solid foundation from completing this course"
"Learn how Straw Man, Ad Hominem, and Slippery Slope arguments distort reality."
Supplemental materials are helpful.
"The audio overviews are a nice touch for reviewing."
"Materials like handouts are useful."
"Printable Handouts: All key slides are provided in printable format..."
"Test your progress with quizzes for each topic..."
Content is logical and easy to follow.
"The structure is logical."
"The course is really informative and provides a very in-depth analysis..."
"Crisp and clear videos, to the point..."
"Provides a complete system for mastering rational thought..."
Course offers strategies for real-world use.
"I can apply these skills immediately."
"The methods for training your brain are practical."
"Provides a set of structured, practical tools..."
"I learned how to use practical tools and strategies that I could apply immediately to my work"
Instructor explains complex ideas clearly.
"Dr. Zwolski is an excellent teacher, explains complex topics like biases and fallacies clearly."
"The lecturer was incredibly fantastic. He explain all the concepts and the definitions of all the topics."
"The lectures have been made very simple to understand. Kamil is doing an amazing job."
"The instructor is a good lecturer. Interesting material presented clearly and concisely."
Some topics could be covered deeper.
"The basics are covered well, but I was hoping for more advanced strategies or deeper dives..."
"Not as in-depth as I expected."
"Could use more in-depth coverage on complex topics..."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Critical Thinking Mastery: Biases, Logical Fallacies & Fixes with these activities:
Thinking, Fast and Slow
Deepen your understanding of cognitive biases and System 1/System 2 thinking.
Show steps
  • Obtain a copy of 'Thinking, Fast and Slow'.
  • Read the book, focusing on sections related to biases and heuristics.
  • Take notes on key concepts and examples.
  • Reflect on how these concepts apply to your own decision-making.
Review Basic Statistics Concepts
Strengthen your understanding of Bayesian Thinking, a key strategy for rational thinking covered in the course.
Browse courses on Bayesian Statistics
Show steps
  • Review basic probability concepts.
  • Study Bayes' Theorem and conditional probability.
  • Work through practice problems involving Bayesian inference.
Bias Identification Exercises
Reinforce your ability to recognize cognitive biases in real-world scenarios.
Show steps
  • Find articles or news stories.
  • Identify potential biases present in the content.
  • Justify your reasoning for each identified bias.
Four other activities
Expand to see all activities and additional details
Show all seven activities
Create a Bias and Fallacy Cheat Sheet
Solidify your knowledge of biases and fallacies by creating a reference guide.
Show steps
  • List all biases and fallacies covered in the course.
  • Write a concise definition for each.
  • Provide an example of each bias and fallacy.
  • Organize the cheat sheet for easy reference.
Analyze a Debate for Fallacies
Apply your knowledge of logical fallacies to a real-world debate or discussion.
Show steps
  • Choose a recorded debate or discussion.
  • Transcribe key arguments from both sides.
  • Identify any logical fallacies used by either side.
  • Write a report analyzing the fallacies and their impact.
Influence: The Psychology of Persuasion
Explore the psychology of persuasion and how it relates to cognitive biases and logical fallacies.
Show steps
  • Obtain a copy of 'Influence: The Psychology of Persuasion'.
  • Read the book, focusing on the principles of persuasion.
  • Identify how these principles relate to biases and fallacies.
  • Reflect on how these principles are used in marketing and advertising.
Tutor a Peer on Logical Fallacies
Reinforce your understanding by explaining logical fallacies to someone else.
Show steps
  • Find a peer who is interested in learning about logical fallacies.
  • Prepare a lesson plan covering key fallacies.
  • Explain each fallacy with clear examples.
  • Answer any questions your peer may have.

Career center

Learners who complete Critical Thinking Mastery: Biases, Logical Fallacies & Fixes will develop knowledge and skills that may be useful to these careers:
Intelligence Analyst
An intelligence analyst gathers information from various sources and assesses threats. This course, focused on biases and logical fallacies, is directly relevant to the work of an intelligence analyst. The course helps them evaluate the credibility and validity of information, identify misinformation, and avoid cognitive traps to produce sound intelligence assessments. The course's techniques, such as the Steel Man Technique and Bayesian Thinking, are relevant for analysts who want to ensure their conclusions are well-supported and objective.
Fraud Investigator
Fraud investigators examine financial records and other data to identify and prosecute fraudulent activities. This course helps a fraud investigator identify inconsistencies and manipulation of data, ensuring a thorough and unbiased investigation. The tools taught in the course, such as recognizing logical fallacies and understanding cognitive biases, prepare a fraud investigator to think critically about evidence and build a strong case. An investigator can also benefit from learning the Pre-Mortem Strategy.
Due Diligence Analyst
A due diligence analyst investigates companies or individuals before a financial transaction. In an effort to protect the interests of their clients, this course helps a due diligence analyst assess the accuracy and completeness of information provided, identify potential risks, and avoid cognitive biases that could cloud their judgment. The recognition of logical fallacies, coupled with the application of rational thinking strategies, is valuable for ensuring a thorough and objective investigation.
Detective
Detectives investigate crimes by gathering evidence, interviewing witnesses, and analyzing clues. This course gives the detective training in critical thinking practices that will allow them to analyze evidence objectively and avoid biases that could lead to false conclusions. Learning to recognize logical fallacies and deceptive arguments is particularly useful in interrogations. Having an understanding of cognitive forcing approaches helps facilitate comprehensive analysis.
Negotiator
Negotiators work in various fields to resolve disputes and reach agreements between parties. This course helps a negotiator identify and counteract manipulative tactics used by others involved in negotiations. By understanding logical fallacies and common biases, a negotiator can maintain a clear and rational mindset, ensuring that they are not swayed by emotional appeals or misleading information. The course's techniques, such as the Steel Man Technique, are valuable for constructing strong, persuasive arguments.
Auditor
Auditors examine financial records and operational processes to verify accuracy and compliance. This course, with its emphasis on identifying biases and logical fallacies, helps an auditor approach their work with a critical and objective mindset. The understanding of common cognitive biases, such as confirmation bias and the anchoring effect, may prove useful when evaluating financial statements and internal controls. Learning Bayesian Thinking is also useful.
Mediator
Mediators facilitate communication and negotiation between disputing parties to reach a resolution. This course helps a mediator recognize and counteract manipulative tactics used by parties involved in the mediation process. An understanding of logical fallacies and cognitive biases enables the mediator to maintain a neutral and objective perspective, guiding the parties toward a fair and mutually agreeable outcome. The Steel Man Technique will prove to be the most useful skill.
Market Research Analyst
A market research analyst examines market conditions to assess the potential sales of a product or service. This course, centered around critical thinking mastery, helps a market research analyst identify biases in data collection and analysis, ensuring more accurate and reliable insights. Understanding cognitive biases such as confirmation bias, anchoring, and the framing effect may be useful when interpreting survey data. By applying techniques learned in this course, a market research analyst can make more objective recommendations.
Compliance Officer
Compliance officers ensure that companies adhere to laws, regulations, and internal policies. This course helps a compliance officer identify potential risks and vulnerabilities by understanding common biases, such as groupthink and overconfidence, that can lead to non-compliance. By learning to recognize logical fallacies and deceptive reasoning, a compliance officer can critically evaluate internal processes, ensuring that policies are enforced effectively and consistently. It requires a person with strong analytical skills.
Data Scientist
Data scientists analyze large datasets to extract meaningful insights and inform decision-making. This course helps a data scientist identify potential biases in data collection and interpretation, ensuring the accuracy and reliability of their analyses. Understanding cognitive biases, such as confirmation bias and the availability heuristic, becomes useful when interpreting statistical results. By applying the data-driven decision-making framework, a data scientist can make more objective and evidence-based recommendations.
Human Resources Manager
Human resources managers oversee various aspects of employee relations, recruitment, and training. This course helps a human resources manager make fair and unbiased decisions in hiring, performance evaluations, and conflict resolution. Understanding cognitive biases, such as the halo effect and groupthink, allows human resources managers to create a more equitable and inclusive work environment. This further extends into the realm of employee training and professional development.
Science Writer
Science writers communicate scientific information to the public in an accessible and engaging way. This course on critical thinking mastery, helps science writers accurately interpret scientific studies and avoid misrepresenting findings due to personal biases. The course also helps science writers recognize and avoid logical fallacies in scientific arguments, ensuring they present information in a fair and balanced manner. The science writer is responsible for using plain language.
Investment Analyst
Investment analysts evaluate financial information to provide investment recommendations. This course may help an investment analyst make decisions by understanding common biases, such as the sunk cost fallacy and overconfidence bias, which can negatively impact investment strategies. With modules on logical fallacies, analysts can avoid being swayed by persuasive but flawed arguments. Techniques such as Bayesian Thinking, enable investment analysts to update their beliefs rationally as new information emerges.
Journalist
Journalists investigate and report on current events for newspapers, magazines, and online media. This course may help a journalist approach their work with a critical and objective mindset, essential for uncovering the truth and avoiding biased reporting. By learning to identify logical fallacies, a journalist can critically evaluate sources and arguments, ensuring they present information in a fair and balanced manner. Recognizing cognitive biases such as confirmation bias and framing, may also be useful.
Policy Analyst
Policy analysts research and analyze policy issues to develop recommendations for government or organizations. The curriculum surrounding biases, logical fallacies, and rational thinking strategies is advantageous to a policy analyst because it assists in ensuring that policies are based on sound reasoning and objective evidence. Learning to recognize and counteract cognitive biases, such as confirmation bias, may be useful when evaluating policy options. This course may also help a policy analyst construct persuasive and well-supported arguments.

Reading list

We've selected two books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Critical Thinking Mastery: Biases, Logical Fallacies & Fixes.
Provides a comprehensive overview of the two systems of thinking: System 1 (fast, intuitive) and System 2 (slow, rational). It directly relates to the course's exploration of cognitive biases and how they impact decision-making. Reading this book will provide a deeper understanding of the psychological mechanisms behind irrational decisions and equip you with tools to recognize and mitigate these biases in your own thinking. It highly recommended supplementary text for this course.
Explores the psychology of persuasion and influence, providing insights into how people are influenced and how to ethically influence others. It complements the course by offering a deeper understanding of the tactics used to exploit cognitive biases and logical fallacies. Reading this book will enhance your ability to recognize and resist manipulative persuasion techniques, making you a more critical and discerning thinker. It valuable resource for anyone interested in improving their understanding of human behavior and decision-making.

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