* Ultra Learning Principles: The video highlights nine principles of ultra learning, a self-directed, intense learning strategy. * Meta-Learning & Study Plan Design: Designing an effective study plan is crucial. The video emphasizes using AI tools (like ChatGPT) to optimize study plans and leveraging expert interviews for validation. * Principle of Directness: Learning should be directly relevant to the goal. The example of learning SQL for a data science interview illustrates this principle. * Focus & Procrastination: The video addresses common focus problems, including procrastination, and suggests techniques like the 5-minute rule and environmental control. It also explains the relationship between arousal, task complexity, and optimal focus. * Retention & Forgetting Curve: Strategies like spaced repetition and proceduralization are crucial for combating the forgetting curve and maximizing retention. * Weakest Link Drill: Focus on and master your weakest areas to improve overall performance. * Near Mastery & Experimentation: The final principles focus on achieving mastery through deep understanding (intuition) and continuous experimentation, pushing boundaries to reach expert levels. * Feedback: The video emphasizes three types of feedback: outcome, informational, and corrective, highlighting the importance of feedback for improvement. AI tools are suggested for efficient feedback. * Retrieval Practice: Regularly testing yourself is key to strengthening neural connections and improving retention.