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David Goggins 48 Hour Challenge - 4 Miles Every 4 Hours | Lex Fridman
26 segments available
I ran 48 miles. Got it done. For me, this was exceptionally difficult, mentally & physically. I recorded a clip after each session, saying something I'm grateful for. Thanks to David Goggins for the challenge, and to my stubborn brain for refusing to quit. The outline for the video is below, but first some relevant links: David Goggins challenge on Instagram: https://www.instagram.com/davidgoggins/ Relevant tweets from me: Start: https://twitter.com/lexfridman/status/1236132395721646085 12 miles: https://twitter.com/lexfridman/status/1236322462125690880 28 miles: https://twitter.com/lexfridman/status/1236563052788580352 40 miles: https://twitter.com/lexfridman/status/1236743863999627280 Outline: 0:00 - Introduction 1:51 - Session 1 - 4 miles - Childhood 4:33 - Session 2 - 8 miles - Family 6:57 - Session 3 - 12 miles - America 9:26 - Session 4 - 16 miles - Friendship 12:44 - Session 5 - Jiu Jitsu 18:11 - Session 6 - 20 miles - Books 23:36 - Session 7 - 24 miles - Artificial Intelligence 25:52 - Session 8 - 28 miles - MIT 29:02 - Session 9 - 32 miles - Community 32:39 - Session 10 - 36 miles - Podcast 39:58 - Session 11 - 40 miles - Hardship 43:30 - Session 12 - 48 miles - Life
Segments Timeline
The 48-Hour Challenge Begins
Lex Fridman introduces the 48-hour challenge inspired by David Goggins, where he runs four miles every four hours. He discusses the mental and physical challenges he anticipates, the cold weather conditions, and his intention to practice gratitude throughout the experience. This segment sets the stage for the journey ahead, emphasizing the importance of mental toughness and self-discovery.
"David Goggins posted a 48-hour challenge which is run four miles every four hours totaling up to 48 miles as 12 sessions I'm doing it to harden up the mind in a dimension that I don't usually challeng..."
Gratitude for Childhood
In his first gratitude reflection after completing the first four-mile run, Lex expresses deep appreciation for his childhood and family, particularly his grandmother. He shares how her love, kindness, and intelligence shaped his early life and instilled a love for literature and knowledge. This segment highlights the foundational experiences that influenced his character and values.
"let's go all right four miles down 40 to go plus the jujitsu session that was easy but I can tell it's gonna get tough so like I said I made a list of 12 things that I'm grateful for one per session t..."
Family Bonds and Lessons
Lex reflects on his family during the second session, acknowledging the ups and downs of family dynamics. He appreciates the gifts his parents have given him, including a love for knowledge and music. This segment emphasizes the importance of familial relationships and the lessons learned from both struggles and joys, showcasing how they contribute to his identity.
"talk less try to run more I have to try to figure out the whole clothing in the shower situation and something I didn't anticipate with 12 sessions I guess for most I'm gonna have to jump in the showe..."
Proud to Be American
After completing 12 miles, Lex shares his gratitude for America, highlighting the opportunities it has provided him as an immigrant. He reflects on the diverse backgrounds that make up the country and expresses his deep appreciation for the freedom and possibilities available to those willing to work hard. This segment captures his pride in his American identity and the values he cherishes.
"was 12 miles down a lot more to go feeling good it's been a while since I've been up at 7 a.m. in the morning on a Saturday but it feels good it feels like I'm getting in front of the day because nobo..."
The Value of Friendship
Lex discusses the significance of friendship during his fourth gratitude session. He recounts his close bond with friends from his youth, particularly a friend named Matt, and how these relationships have shaped his life. This segment underscores the importance of companionship and shared experiences, illustrating how friendships enrich our lives.
"miles for sessions eight more to go I'm getting in a little bit of a zone feeling good getting a lot done there's an interesting urgency to everything which I kind of enjoy I'm actually getting a lot ..."
Honesty on the Mat
In the midst of his challenge, Lex reflects on his experiences in jiu-jitsu and the honesty that comes with combat sports. He expresses gratitude for the people he has met on the mat and the lessons learned through grappling. This segment highlights the raw truth and personal growth that can be found in physical challenges and martial arts.
"do some jiu-jitsu black belt instructor philosopher warrior with it [Music] all right I think that's five sessions now although I'm starting to loose track a little bit it's a fun time that's a little..."
The Philosophy of Combat Sports
Lex shares his thoughts on the philosophical aspects of jiu-jitsu and martial arts, discussing how they foster intellectual growth and humility. He reflects on the importance of being challenged by younger practitioners and how this experience keeps him grounded, while also expressing gratitude for the mentors and communities that have shaped his martial arts journey.
"for the rest of my life I see it extremely valuable for your intellectual curiosity and girls to be humble throughout your no matter what you achieve in life to be humble is I to me is essential for h..."
Gratitude for Literature
Lex expresses his deep appreciation for literature and the existential philosophers who have influenced his thinking. He discusses how reading has allowed him to explore profound questions about life and mortality, sharing specific authors and works that have shaped his worldview and inspired his intellectual curiosity.
"having sort of come across the sport first through judo grateful to the folks at Philadelphia judo for revealing to me the beauty of this art of the gentle art of Judo and I'm really great grateful to..."
The Challenge of Distance Running
As Lex continues his 48-hour challenge, he reflects on the mental and physical challenges of running long distances. He discusses the importance of pacing and the mental fortitude required to push through discomfort, while also acknowledging the impact of fatigue and the need to stay focused on the next step.
"grateful all right I think those 20 miles but I'm not sure I'm kind of losing track and also not really worrying about the full span of it but instead focusing on the next step it's getting a little b..."
Exploring Existential Thoughts
In this segment, Lex delves into the existential themes that arise during his runs, discussing the transformative moments he experiences while reading. He reflects on the beauty and terror of life, mortality, and the philosophical insights gained from literature, emphasizing the importance of these reflections in his personal growth.
"grateful for books for having an opportunity from an early age to explore the the minds and the thinking and the ideas of others through como si so I would say most the 20th century existential philos..."
The Influence of Science Fiction
Lex shares his desire to explore science fiction literature, acknowledging a gap in his reading history. He discusses the profound philosophical themes present in the genre and expresses a commitment to broaden his literary horizons, seeking recommendations for impactful science fiction works that could enrich his understanding of life.
"on me if I were to regret anything I think it has to do with the my Soviet of bringing is I never really got into science fiction so I've really it seemed like to my mind it seemed to me more profound..."
Gratitude for AI and Community
Lex expresses his gratitude for the advancements in artificial intelligence and the community of researchers that have contributed to its development. He reflects on the interconnectedness of various fields of study and the excitement of being part of a cutting-edge technological landscape, highlighting the collaborative spirit that drives innovation.
"of mind let's go all right 24 miles down just past the halfway point 11 p.m. run I feeling okay dreading going through the night a little bit but injury-wise a little bit of shin splints little bit of..."
The Gift of Collaboration
Fridman shares his appreciation for the collaborative opportunities he has had at MIT and in the tech industry. He discusses the importance of teamwork in achieving large-scale projects and how his experiences have shaped his dreams and aspirations in artificial intelligence.
"the kind of developments that are had happening now the kind of tools that are available to for breakthroughs both in the understanding and the indigent engineering space is just amazing I'm really gr..."
Reflections on Community Support
Lex expresses gratitude for the support he receives from his online community and podcast sponsors. He highlights how this support has allowed him to pursue his passion for deep conversations and maintain his podcast while working on his startup.
"downs of it I'm really thankful for from the vsms PhD that I got in computer science Computer Engineering and focusing on machine learning and artificial intelligence so getting exposure to the exciti..."
The Struggles of a Runner
In this candid moment, Lex shares the physical and mental challenges he faces during the 32-mile mark of his run. He reflects on the importance of community support and the role it plays in his motivation to continue despite feeling exhausted.
"dreams I've had always and the dreams that burns now of having a large scale impact of of working in large teams collaboratively on one big moonshot project it's something that's much it's very diffic..."
The Role of Sponsorship
Fridman discusses the impact of sponsorship on his podcast and how it has enabled him to focus on meaningful conversations. He shares his appreciation for the companies that support his work and how this financial backing allows him to pursue his dreams.
"gonna try to make this quick not feeling great that was 32 miles and it's getting rough I don't actually walk a little bit of that the thing I'm grateful for sounds funny to say but the community peop..."
Finding Strength in Vulnerability
Lex opens up about his struggles during the challenge, emphasizing the importance of vulnerability in sharing his journey. He reflects on the support he receives from listeners and the strength it gives him to continue pushing through the physical demands of the run.
"completely freely choose if my hands are totally not tired I don't have to be sponsored by cash up at all by everybody else expressvpn incredible thing I've used for a long time that's your class this..."
One Step at a Time
In this motivational segment, Lex emphasizes the importance of taking one step at a time during the challenge. He shares insights on diet, energy management, and the ups and downs of the running experience, reinforcing the idea that perseverance leads to eventual success.
"appreciated that I'm sorry if I look like a mess these videos are really tough to record I really don't want to record them I am really struggling to even finish this freaking thing not sure I should ..."
Gratitude for Podcasting
Lex expresses gratitude for the guests on his podcast, highlighting the kindness and generosity of those who have shared their time and knowledge with him. He reflects on the profound conversations he's had with influential figures, including Elon Musk and Don Knuth, and the joy of connecting with them on a human level.
"right now next one will probably be the hardest one 3 p.m. is because it's like the body's right now I really just want to rest and there's no glory in finishing the eleventh session right there's glo..."
The Beauty of Human Connection
Fridman shares his appreciation for the human connections he's made through his podcast, emphasizing the importance of listening and understanding one another. He reflects on how even busy individuals take the time to engage meaningfully, which reinforces his faith in humanity.
"of the busiest so basically my whole strategy has been asking silly profound questions of the busiest engineers in the world I mean the fact that Elon Musk twice carved out time from his day to have a..."
Challenging Mediocrity
Lex discusses his refusal to settle for mediocrity, despite the well-meaning advice from loved ones to take it easy. He expresses a deep desire to realize his potential and pursue his dreams, emphasizing the importance of embracing challenges and striving for greatness.
"neuro scientists philosophers historians I mean they everybody has kindly sat down and said yes at first sat down and just listened the way you know when you become famous like a few of the folks have..."
Embracing Hardship
Fridman reflects on the hardships he's faced throughout his life and how they have shaped him. He expresses gratitude for the challenges that have pushed him to grow and learn, viewing them as opportunities for personal development.
"opportunity to share that with uh with the world and with the great media of people through the podcast medium which is like which i think is the one of the exciting mediums in the future for long-for..."
The Power of Persistence
Lex shares insights from his experience during the 48-hour challenge, emphasizing the importance of persistence and focusing on the present moment. He encourages viewers to embrace challenges and test their limits, highlighting the mental strength required to push through difficult times.
"alright I'm gonna keep this short I did 40 miles took a shower I did swap out one of the sessions for jujitsu session I decided I'm gonna stay true to the for 48 hour 48 mile challenging I'm gonna try..."
Finding Joy in the Journey
Fridman reflects on the joy of completing the 48-mile challenge, appreciating the moments of struggle and triumph. He emphasizes the importance of savoring experiences and the lessons learned along the way, encouraging others to seek out their own challenges.
"fortunate for that and some of them many of them especially recently had been self-imposed in me to choosing certain decisions in my career to uh to really challenge myself in every kind of way and al..."
Gratitude for Life's Challenges
Lex expresses gratitude for the challenges he has faced, viewing them as opportunities for growth. He encourages viewers to embrace their own hardships and to keep pushing themselves intellectually and physically, while also spreading love and positivity.
"kind of advice I enjoy the richness the deep beauty of every moment so I'm grateful for that but I'm also endlessly on satisfied with not realizing the potential that I believe I have so I really have..."
The Next Challenge Awaits
Fridman concludes his reflections on the 48-hour challenge, expressing excitement for future opportunities and challenges. He encourages viewers to keep striving for their goals and to embrace the journey ahead, reinforcing the importance of resilience and determination.
"the princess it's it's about the dragon and then maybe the princess can help me slay the dragon too but I'm grateful for that opportunity for that hardship and looking forward to 7:00 p.m. to crush th..."