In this episode of The Brainy Business podcast, guest Leidy Klotz shares his research on the psychology of subtraction and its importance in decision-making and problem-solving. Klotz discusses how our natural instinct is to add rather than subtract when trying to improve a situation, and he provides insights into why this is the case. He explains that humans have a desire to display competence, and adding to a situation is a visible way to demonstrate that we can deal with the world effectively. However, Klotz argues that we can also display competence through subtracting, but it may require more effort to make it noticeable. He shares studies conducted with LEGO structures, itineraries, recipes, and computer grids, which consistently showed that people overwhelmingly choose to add rather than subtract. The episode explores concepts such as loss aversion and the IKEA effect, which contribute to our preference for adding. The conversation also touches on the concepts of minimalism and essentialism, and how subtracting can be a powerful tool for displaying competence and achieving goals effectively. Listeners will gain valuable insights into the psychological biases that hinder effective decision-making and problem-solving, and learn practical strategies to prioritize and achieve what truly matters.  In this episode: Discover the pivotal role subtraction plays in effective decision-making and problem-solving. Learn how our instinctive preference for addition can obstruct optimal solutions. Grasp how to confront biases and initiate shifts towards a subtractive mindset. Understand the immense benefits of streamlining and eliminating needless aspects of daily life. Acquire empowering strategies for integrating subtraction practices into your everyday living. Show Notes: 00:00:00 - Introduction, Melina Palmer introduces the episode and its focus on the power of subtraction with Dr. Leidy Klotz. She emphasizes the importance of optimization, reduction, and efficiency in various areas of life. 00:03:20 - Dr. Leidy Klotz's Background, Dr. Klotz shares his background in engineering and how his interest in sustainability led him to behavioral science. He highlights the overlap between engineering, architecture, and behavioral science in terms of creative application and design. 00:08:56 - Uncommon Paths to Behavioral Science, The conversation explores the diverse backgrounds of behavioral scientists, including Dr. Klotz's experience as a professional soccer player. They discuss how different disciplines, like marketing and sports, can contribute to the field of behavioral science. 00:11:50 - Personal Backgrounds and Professional Work, Melina and Dr. Klotz discuss how personal backgrounds, such as being an opera singer or playing basketball, can shape a person's approach to problem-solving. They highlight the value of diverse experiences in the field of behavioral science. 00:13:35 - Introduction to Subtract, Dr. Klotz introduces his book, Subtract, and explains how it explores the concept of subtraction as a means of optimization. He discusses the relationship between design, sustainability, and the creative application of behavioral science principles. 00:15:26 - The Instinct to Add, Leidy discusses how our first instinct when trying to improve something is to add, rather than subtract. This instinct is seen across various contexts, including LEGO structures and itineraries. The guest also mentions a study where people were given a task to make quadrants symmetrical and found that people overwhelmingly added blocks instead of removing them. 00:17:27 - Overlooking Subtraction, The guest explains that our tendency to overlook subtraction is due to various factors such as loss aversion, the endowment effect, and the IKEA effect. The book explores these factors and delves into the biological, cultural, and economic forces that contribute to our preference for adding. 00:18:47 - Science-Informed Strategies, Leidy discusses the latt