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In the video, Po-Shen Loh discusses his work on the mathematics of a network and contact tracing. He talks about how his team is working to create a positive feedback loop to help prevent pandemics. He also discusses the difficulties involved in making the app work, and how more research is needed in this area.

**00:00:00**Professor Po-Shen Loh discusses mathematics, the math Olympiad, combinatorics, and contact tracing. He also talks about his experience flying, the importance of freedom and knowledge in solving large-scale problems, and the beauty of bridges. He concludes the podcast by discussing love and how it is similar to mathematics in that we rely on a network of knowledge to have a quality of life.**00:05:00**In this video, Po-Shen Loh discusses levels of abstraction, how to start from scratch in programming, and how to write efficient algorithms. He also talks about his experiences in programming competitions, which he says are helpful for students interested in programming or in building things.**00:10:00**Lex Fridman discusses how he believes that mathematics can be difficult at first, but can be rewarding if someone is able to invent something. He also discusses his philosophy on teaching, which is that students should be taught how to invent instead of memorizing methods.**00:15:00**Po-Shen Loh is the founder and CEO of NoVID, a startup that uses network theory and smartphones to control diseases. Loh's work is inspired by the fact that most attempts to control diseases have failed because of feedback loops that are negative for the people being controlled. Loh's team of user experience designers was essential to the success of NoVID.**00:20:00**The video discusses Po-Shen Loh's research on how to create a positive feedback loop to help prevent pandemics. One way to do this is to track how many physical relationships separate people from the disease. The idea is that the closer the spread of information is to the reality of the disease, the more effective the feedback loop will be. This is a very good example of how framing can affect how people think about a problem.**00:25:00**Po-Shen Loh discusses the mathematical concepts of a network and contact tracing, and how they can be used to create a spread of information to protect oneself from a virus.**00:30:00**Po-Shen Loh explains that the mathematics used in the Po-Shen Loh Mathematics Olympiad are based on the Pythagorean theorem, distance formula, and probability. He also discusses the difficulties involved in making the app work, mentioning that it requires significant development work on the mobile app side.**00:35:00**The video discusses a team's experience in creating a computer algorithm to predict the spread of a virus. They discuss how the algorithm works and how it can be used to help protect society. However, they note that more research is needed in this area before any concrete policies can be put in place.**00:40:00**The mathematician, Po-Shen Loh, discusses his work on mathematics, math Olympiad, combinatorics, and contact tracing. He discusses how his work on this subject has attracted the interest of real researchers, and how they are now working together to try to understand the answer to a question that has remained unanswered for many years. Loh says that even though a vaccine may not be 100% effective, it is still important to have other techniques available in case of an outbreak.**00:45:00**Po-Shen Loh discusses the differences between the value proposition of other contact tracing apps and Novad, and how this may be hindering the spread of pandemics. He also discusses how individual people can help by installing Novad, and how collaborations between public health researchers could help solve the problem of pandemics.**00:50:00**The International Mathematical Olympiad is a prestigious competition for students who are not yet in college. The competition asks students to solve difficult problems in mathematics, which can be helpful for outside inference.**00:55:00**The video discusses the mathematics olympiad, which is a competition where countries send six people to compete. It explains that, although the olympiad is popular in Russia, it is not as popular in the United States. It also discusses the importance of knowledge and skill in invention and innovation at a young age, and how this is a common theme in the olympiad.

In this video, Po-Shen Loh discusses his work on mathematics, the math Olympiad, and contact tracing. He shares his ideas on how to improve elections, and talks about how his work on networks is similar to the work being done on Covid.

**01:00:00**Po-Shen Loh discusses the Russian system of mathematics education, which emphasizes rigorous deep education over the weaker student. He also talks about the psychological pressure that students feel when competing in mathematics olympiads. He believes that this system can produce some of the best minds in the world. Finally, Loh discusses his approach to mathematics teaching, which focuses on exams and not just problem-solving.**01:05:00**Lex Fridman, a mathematics professor, discusses how he prepares students for the international math Olympiad. He explains that each problem is worth seven points, and that the students' maximum score is six problems x 7 points = 42 points. The way the problems are scored is explained, and it is explained that the US delegation tries to negotiate the points a problem is worth. The process of grading the written solutions is described, and it is mentioned that the coaches are speaking different languages which makes it difficult to manipulate the students.**01:10:00**Po-Shen Loh describes how, as a mathematics student, he learned to solve problems by practicing and reading textbooks until he found proofs that were short and linear in the number of insights required. This process allows him to estimate the number of insights required to solve a problem, and whether it is a good idea to pursue it. Loh also describes how, when stuck on a problem, he relies on his intuition and tries different solutions to see if any of them lead to a solution.**01:15:00**This YouTube video features Professor Po-Shen Loh talking about how he learned to select good problems to work on in order to maximize the chance of success. He also mentions Jacob Fox, another esteemed mathematician who taught him a lot about how to approach problems. Professor Loh believes that mathematics is discovered, rather than invented, and that there are few, if any, truly novel ideas in the field.**01:20:00**Po-Shen Loh discusses the mathematics of the math Olympiad and how it is similar to a mental exercise for artificial intelligence. He also talks about how children learn math and the difference between human intelligence and artificial intelligence.**01:25:00**This video discusses mathematics and its applications, particularly in the fields of physics and artificial intelligence. It provides a brief introduction to the concepts of different dimensions, space, and time, and how these play into mathematics. The video then presents a live demonstration of how a middle school student solves a math problem. The comments section of the video provides additional insights and perspectives on the subject.**01:30:00**In this video, mathematician Po-Shen Loh discusses the excitement of discovering mathematics when he was a student. He goes on to say that there is something for everyone in mathematics, with geometry being the most visually appealing and easily accessible to students. He also advises students on how to learn mathematics, emphasizing the importance of school and high school math competition problems. Finally, he shares information on the Daily Challenge website run by the Mathematical Association of America.**01:35:00**Po-Shen Loh, a mathematician and computer scientist, discusses the challenges of teaching mathematics to middle and high school students, emphasizing the importance of daily practice. He also shares his experience with using an app to improve memory recall.**01:40:00**Lex Fridman discusses the importance of daily practice in mathematics, and how Complexity Analysis can be useful for understanding the difficulty of problems.**01:45:00**In this video, Po-Shen Loh explains how a voting tree works and some of its mathematical properties. He also discusses a theoretical question about elections and how a voting tree could solve it. Finally, he explains how a voting tree could be compressed to be smaller and achieve the same results as a regular election.**01:50:00**Po-Shen Loh discusses mathematics, math Olympiad, combinatorics, and contact tracing. Lex Fridman asks about ideas for improving elections, and Loh mentions some parallels between his work and Covid's work on networks.**01:55:00**This video discusses the mathematics behind a new voting system called stochastic coalescence, which is a faster version of the traditional voting system. The video also discusses the work of Lex Fridman, a mathematician at Microsoft Research.

In this video, Po-Shen Loh discusses his work in mathematics and how it can be applied to other fields. He talks about the mathematical process of finding other agents and reaching out, and how this can be used to solve problems more efficiently. He also offers advice to high school and college students on how to succeed in life.

**02:00:00**In this video, Po-Shen Loh discusses the mathematics of the Math Olympiad, combinatorics, and contact tracing. He explains that the process of finding other agents and reaching out is a way of distributing the workload among a group, and that this is a problem because the giant agent will eventually absorb all the others. He suggests that systems like the internet might be able to create distributed knowledge bases in a more efficient way.**02:05:00**Po-Shen Loh talks about mathematics, math Olympiad, and contact tracing. He shares that much of the exciting work in this field was done in the 20th century, but much of the application will be in the 21st century. He then asks a ridiculous question, which leads into a discussion of Scott Aaronson's probability of p and p not equal to np. Aaronson once put this at three percent, but has since moved on to other projects. Loh shares that 42 has a powerful meme effect and is inspiring to many. He recommends reading books and watching movies that inspire and motivate him.**02:10:00**This YouTube video features Po-Shen Loh discussing his interest in mathematics and various campaigns he has participated in. He also offers advice to high school and college students on how to succeed in life. He concludes the video by discussing the meaning of life. Loh emphasizes the importance of learning how to invent and says that, no matter what your individual goals may be, pursuing them is important. He also discusses the regret felt when a goal is not achieved, and how this can be a motivating factor in continuing to pursue goals.**02:15:00**Po-Shen Loh discusses his experience in mathematics and how it has impacted his work in other fields. He also talks about his recent decision to change his score metric from number of hours in a person's lifetime to number of hours in the life of a species.**02:20:00**Po-Shen Loh is a mathematician who has worked on mathematics Olympiads and combinatorics. He discusses how these two fields relate, and how mathematics can be used to solve problems in other fields.

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