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#183 – Po-Shen Loh: Mathematics, Math Olympiad, Combinatorics & Contact Tracing

Lex Fridman Podcast

Conversations that explore technology, history, philosophy, physics, mathematics, biology, chemistry, engineering, AI, robotics, programming, music, film, art, sports, psychology, neuroscience, geopolitics, business, economics, religion, astronomy, and the human condition with people from all walks of life.

Po-Shen Loh is a mathematician at CMU and coach of the USA International Math Olympiad team. Please support this podcast by checking out our sponsors:
- The Jordan Harbinger Show: https://jordanharbinger.com/lex/
- Onnit: https://lexfridman.com/onnit
- BetterHelp: https://betterhelp.com/lex to get 10% off
- Eight Sleep: https://www.eightsleep.com/lex and use code LEX to get special savings
- LMNT: https://drinkLMNT.com/lex to get free sample pack

EPISODE LINKS:
Po's Twitter: https://twitter.com/poshenloh
Po's Website: https://www.poshenloh.com/
Daily Challenges: https://daily.poshenloh.com/
NOVID: https://www.novid.org/

PODCAST INFO:
Podcast website: https://lexfridman.com/podcast
Apple Podcasts: https://apple.co/2lwqZIr
Spotify: https://spoti.fi/2nEwCF8
RSS: https://lexfridman.com/feed/podcast/
YouTube Full Episodes: https://youtube.com/lexfridman
YouTube Clips: https://youtube.com/lexclips

SUPPORT & CONNECT:
- Check out the sponsors above, it's the best way to support this podcast
- Support on Patreon: https://www.patreon.com/lexfridman
- Twitter: https://twitter.com/lexfridman
- Instagram: https://www.instagram.com/lexfridman
- LinkedIn: https://www.linkedin.com/in/lexfridman
- Facebook: https://www.facebook.com/lexfridman
- Medium: https://medium.com/@lexfridman

OUTLINE:
Here's the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time.
(00:00) - Introduction
(08:51) - Planes and bridges
(12:28) - Writing a computer game from scratch
(14:54) - Programming competitions
(18:28) - Math is hard
(23:59) - Contact tracing that preserves privacy
(1:01:16) - Math Olympiad
(1:16:57) - Hard math problem
(1:24:14) - Is math discovered or invented?
(1:29:09) - Intelligence
(1:35:59) - Math education
(1:40:10) - How to learn math
(1:49:06) - Combinatorics
(1:52:13) - Voting trees
(2:02:36) - Stochastic coalescence
(2:12:23) - P=NP
(2:16:39) - Tolkien and WWII
(2:19:00) - Advice for young people
(2:21:05) - Meaning of life

Po-Shen Loh is a mathematician at CMU and coach of the USA International Math Olympiad team. Please support this podcast by checking out our sponsors: 
– The Jordan Harbinger Show: <a href="https://jordanharbinger.com/lex/">https://jordanharbinger.com/lex/</a> 
– Onnit: <a href="https://lexfridman.com/onnit">https://lexfridman.com/onnit</a> 
– BetterHelp: <a href="https://betterhelp.com/lex">https://betterhelp.com/lex</a> to get 10% off 
– Eight Sleep: <a href="https://www.eightsleep.com/lex">https://www.eightsleep.com/lex</a> and use code LEX to get special savings 
– LMNT: <a href="https://drinkLMNT.com/lex">https://drinkLMNT.com/lex</a> to get free sample pack
EPISODE LINKS: 
Po’s Twitter: <a href="https://twitter.com/poshenloh">https://twitter.com/poshenloh</a> 
Po’s Website: <a href="https://www.poshenloh.com/">https://www.poshenloh.com/</a> 
Daily Challenges: <a href="https://daily.poshenloh.com/">https://daily.poshenloh.com/</a> 
NOVID: <a href="https://www.novid.org/">https://www.novid.org/</a>
PODCAST INFO: 
Podcast website: <a href="https://lexfridman.com/podcast">https://lexfridman.com/podcast</a> 
Apple Podcasts: <a href="https://apple.co/2lwqZIr">https://apple.co/2lwqZIr</a> 
Spotify: <a href="https://spoti.fi/2nEwCF8">https://spoti.fi/2nEwCF8</a> 
RSS: <a href="https://lexfridman.com/feed/podcast/">https://lexfridman.com/feed/podcast/</a> 
YouTube Full Episodes: <a href="https://youtube.com/lexfridman">https://youtube.com/lexfridman</a> 
YouTube Clips: <a href="https://youtube.com/lexclips">https://youtube.com/lexclips</a>
SUPPORT & CONNECT: 
– Check out the sponsors above, it’s the best way to support this podcast 
– Support on Patreon: <a href="https://www.patreon.com/lexfridman">https://www.patreon.com/lexfridman</a> 
– Twitter: <a href="https://twitter.com/lexfridman">https://twitter.com/lexfridman</a> 
– Instagram: <a href="https://www.instagram.com/lexfridman">https://www.instagram.com/lexfridman</a> 
– LinkedIn: <a href="https://www.linkedin.com/in/lexfridman">https://www.linkedin.com/in/lexfridman</a> 
– Facebook: <a href="https://www.facebook.com/lexfridman">https://www.facebook.com/lexfridman</a> 
– Medium: <a href="https://medium.com/@lexfridman">https://medium.com/@lexfridman</a>
OUTLINE: 
Here’s the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time. 
(00:00) – Introduction 
(08:51) – Planes and bridges 
(12:28) – Writing a computer game from scratch 
(14:54) – Programming competitions 
(18:28) – Math is hard 
(23:59) – Contact tracing that preserves privacy 
(1:01:16) – Math Olympiad 
(1:16:57) – Hard math problem 
(1:24:14) – Is math discovered or invented? 
(1:29:09) – Intelligence 
(1:35:59) – Math education 
(1:40:10) – How to learn math 
(1:49:06) – Combinatorics 
(1:52:13) – Voting trees 
(2:02:36) – Stochastic coalescence 
(2:12:23) – P=NP 
(2:16:39) – Tolkien and WWII 
(2:19:00) – Advice for young people 
(2:21:05) – Meaning of life

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#183 – Po-Shen Loh: Mathematics, Math Olympiad, Combinatorics & Contact Tracing

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