In the video, the speaker discusses the concept of free traits which are behaviors we adopt to advance our core projects in life. Instead of focusing on personality types, the speaker suggests asking about core projects. For example, the speaker identifies as an introvert but adopts extroverted traits to fulfill their core project of being a professor and sharing knowledge with students. The speaker emphasizes the importance of focusing on what truly matters in life and how we can adapt our behaviors to achieve our goals. #vizard