Lt. General Mike Fenzel (Ret.) on bad data, bad experts, and why we can’t exit wars

More from Summation with Auren Hoffman All episodes →

1. 

   24 Mar 2026 · 49 min

   Vlad Tenev and Tudor Achim on mathematical superintelligence, why math is harder than code for LLMs, and the end of buggy software

   Vlad Tenev (Robinhood co-founder/CEO) and Tudor Achim (former helm.ai CTO) are the founders of Harmonic, an AI lab pioneering the path toward mathematical superintelligence. Together, they developed Aristotle, a model that eliminates hallucinations by reasoning in Lean code rather than natural language. By shifting from probabilistic guesses to formal logic, Aristotle produces 100% verified mathematical outputs. The model recently demonstrated its breakthrough capabilities by achieving gold-m...

2. 

   17 Mar 2026 · 55 min

   Retired 4-star General John Allen on Iran, AI hyperwar, and Taiwan’s future

   John Allen is a retired four-star Marine Corps general who commanded 150,000 US and NATO troops in Afghanistan and built a 65-nation coalition as Special Presidential Envoy to the Global Coalition Against ISIS. After retiring from the military, he led the Brookings Institution as its president. He co-invented the term "hyperwar," holds five AI patents, and co-authored Turning Point: Policymaking in the Era of Artificial Intelligence. He currently serves as a strategic advisor to Microsoft. In...

3. 

   10 Mar 2026 · 54 min

   Adrian Aoun on healthcare as a product, Apple's AI problem, and why you should have kids now

   Adrian Aoun helped found Torch, a health data platform that was acquired by OpenAI earlier this year. He's also the co-founder of Seneca, which raised $60 million to build autonomous drones for wildfire suppression. Adrian previously founded Forward Health. He previously led special projects for Larry Page at Google, where he founded Sidewalk Labs and helped build Google's AI division. In this episode of Summation, Adrian and Auren discuss: Why curing all cancer adds only ~3 years of life but...

4. 

   3 Mar 2026 · 1 hr 2 min

   Tod Sacerdoti (Flex GP and Pipedream CEO) on seed at scale and SaaS mispricing

   Tod Sacerdoti is the CEO and co-founder of Pipedream, which recently sold to Workday. Tod is also a general partner at Flex Capital, where he's invested in over 400 companies including Chime, Vercel, Replit, CodeRabbit, Mercury, and many others. He previously founded BrightRoll, a programmatic video advertising platform that sold to Yahoo for $640 million in 2014. In this episode of Summation, Tod and Auren discuss: Why seed investing has the highest annualized returns of any venture as...

5. 

   24 Feb 2026 · 58 min

   Nextdoor CEO Nirav Tolia on bowling alone, AI bots, and why the heartland is happier than the coasts

   Nirav Tolia is the co-founder and CEO of Nextdoor (NYSE: NXDR), the neighborhood social network with over 105 million users across 350,000 communities worldwide. After stepping down as CEO in 2018, he returned to lead the company in 2024. In this episode of Summation, Nirav and Auren discuss: Why success kills innovationThe death of physical communityWhy Nextdoor had to change their stock tickerInsider vs Outsider entrepreneursYou can find Auren Hoffman on X at @auren and Nirav Tolia on X at ...

6. 

   11 Feb 2026 · 1 hr 2 min

   Martin Shkreli on prison, beating Bloomberg, and being hated

   Martin Shkreli is the co-founder of DL Software, the parent company of Godel Terminal, a Bloomberg competitor for financial data. He previously founded the biotech companies Retrophin and Turing Pharmaceuticals and the hedge fund MSMB Capital Management. In this episode of Summation, Martin and Auren discuss: The structural reasons fintech is less competitive than other industriesHow drug discovery actually works (and doing it from prison)Why AI labs are now out-recruiting hedge fundsWh...

7. 

   9 Feb 2026 · 1 min

   World of DaaS is now Summation

   World of DaaS is now Summation with Auren Hoffman. While we’re proud of our roots in the data world, our conversations have evolved. Summation better reflects our obsession with finding the non-obvious ideas that shape our world. What’s changing? Just the name. You’ll still get the same insights from the world’s most influential founders, investors, and thinkers. If you’re already a subscriber, you’re all set. If you’re new here, welcome. Hit subscribe and join us! Our first episode as ...

8. 

   3 Feb 2026 · 42 min

   Turing CEO Jonathan Siddharth - The $30 Trillion Knowledge Work Market, Training Frontier AI Models and Building Stage Five Culture

   Jonathan Siddharth is the founder and CEO of Turing, a $2.2 billion AI company that provides coding and reasoning data to train frontier models for OpenAI, Google, Meta, Anthropic and more. Turing’s mission is to accelerate superintelligence to drive economic growth. In this episode of World of DaaS, Jonathan and Auren discuss: How Turing creates expert data for frontier modelsWhy SaaS is dying in the age of AI agentsDisrupting the $30 trillion market for digital knowledge workBuilding a stag...

9. 

   27 Jan 2026 · 42 min

   Chapter CEO Cobi Blumenfeld-Gantz - medicare complexity, $100B fraud and how tech can fix it

   Cobi Blumenfeld-Gantz is the co-founder and CEO of Chapter, an AI-powered Medicare navigation platform valued at $1.5 billion that helps seniors navigate coverage and enrollment. In this episode of World of DaaS, Cobi and Auren discuss: Why medicare fraud costs over $100 billion annuallyHow 24,000 medicare plans create impossible choices for seniorsWhy government tech keeps failing with Accenture contractsProvider network data accuracy and AI solutionsYou can find Auren Hoffman on X at @auren...

10. 

    20 Jan 2026 · 54 min

    Industry Ventures Founder Hans Swildens - how secondaries became the dominant path for VC exits

    Hans Swildens is a partner and Head of Industry Ventures at Goldman Sachs. Industry Ventures is one of the pioneers in the secondary market for venture capital, managing several billion in assets across LP stakes, direct secondaries, and primary fund investments. In October of 2025, Goldman Sachs announced they were acquiring Industry Ventures in a deal worth over $900 million dollars. In this episode of World of DaaS, Hans and Auren discuss: The evolution of secondaries from distressed...