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Fighting extremism in martial arts like BJJ & MMA.

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Latest Issues

How Jiu-Jitsu Survives the AI Era

In this episode of Fighting Matters, Steve Kwan is joined again by Dr. David Riedman: 17-year jiu-jitsu practitioner, MIT-trained data analyst, and PhD researcher whose dissertation focused on measuring the accuracy of large language model...

6 days ago
1

A Man Broke Into My Apartment at 4 AM (feat. Andrea Tang)

In this episode of Fighting Matters, Steve Kwan is joined by Andrea Tang: novelist, brown belt at District Martial Arts, and host of BJJ Today on the BJJ Mental Models Premium Network. Three years ago, a serial home invader broke into Andre...

13 days ago
1

How YOU Can Clean Up Jiu-Jitsu

After yet another sexual abuse case in the BJJ community, the Fighting Matters crew works through a question every grappler eventually has to answer: “What can I, as just a student, actually do about this?” They get into voting with your wa...

22 days ago
2
2

Why BJJ Camps Need Less Jiu Jitsu

In this episode of Fighting Matters, Steve Kwan is joined by Jesse Walker (Rough Hands BJJ), Mike Mahaffey (Old Bastard BJJ), and Niamh Bryn (Snowblind BJJ) for a recap of the recent Rough Hands spring camp in Louisville. The four of them a...

a month ago

How to Identify "Active Clubs" in BJJ

In this episode of Fighting Matters, Steve Kwan is joined by Hannah Gais, a senior research analyst at the Southern Poverty Law Center who has tracked white nationalist and neo-Nazi movements since 2016 and also trains jiu-jitsu. They get i...

a month ago
5

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  • Fighting Matters

    Fighting extremism in martial arts like BJJ & MMA.

  • David Riedman, PhD

    Data scientist (PhD in AI/LLMs) and creator of the K-12 School Shooting Database. Interviewed by more than 1,000 media outlets including Freakonomics Radio, New England Journal of Medicine, New York Times, and Washington Post.

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