Advertise on podcast: Summation with Auren Hoffman

David Kirtley is the co-founder and CEO of Helion Energy, the fusion company. Helion has raised more than $1.5 billion at a $15.5 billion valuation, and Sam Altman is its biggest investor and former chairman. Before fusion, David worked on rocket and space propulsion. In this episode of Summation, David and Auren discuss: Skipping the steam turbine and pulling electricity straight out of a starHow a Best Buy network card helped make fusion possibleRegulating a 150 million degree machine like a hospital proton beamOne cent power, and what happens when AI stops being limited by electricityYou can find Auren Hoffman on X at @auren and David Kirtley on X at @Dkirtley

Alex Rampell is a general partner at Andreessen Horowitz, where he leads the firm’s $2.7 billion Apps practice and has driven much of the firm's fintech investing, including Plaid, Mercury, and Opendoor. Before a16z, Alex co-founded multiple companies including Affirm (NASDAQ:AFRM), FraudEliminator (acquired by McAfee in 2006), Point, TrialPay (acquired by Visa in 2015), TXN (acquired by Envestnet in 2019), and Yub (acquired by Coupons.com in 2013). In this episode of Summation, Alex and Auren discuss: Why Visa is the purest network effect business in the world and why it's still a duopolyThe reverse Robin Hood hidden inside every rewards credit cardThe "hostages, not customers" test for which software companies survive AIWhat was once payroll becoming payments and the businesses it unlocksYou can find Auren Hoffman on X at @auren and Alex Rampell on X at @arampell

Chris Hulls is the co-founder and executive chairman of Life360 ($LIF), the family safety and location-sharing app now worth over $5 billion. He was CEO for 17 years before stepping back last year. Before Life360, he served in the Air Force in Afghanistan. In this episode of Summation, Chris and Auren discuss: Why he took Life360 public in Australia and why he'd never run a public company againWhy "you want to sound smart, but not interesting" is the secret rule of corporate speakWhy nobody actually cares about privacy, and what finally scares him about AIWhy the work of keeping a home never ends, no matter how rich you getYou can find Auren Hoffman on X at @auren and Chris Hulls on X at @chrishulls

Aydin Senkut is the founder and managing partner of Felicis, the venture firm he started in 2006, with over $4B under management and early bets on Shopify, Notion, Canva, and Adyen. He was Google's first product manager and has been on the Forbes Midas list of top investors for 13 years running. In this episode of Summation, Aydin and Auren discuss: Why the best platform companies came from Ottawa, Sydney, and Amsterdam and not Silicon ValleyHow capital became a commodity and people are the only real moat leftWhy the trait he bets on is the willingness to reset your priorsHow defense went from an optional purchase to a matter of survivalYou can find Auren Hoffman on X at @auren and Aydin Senkut on X at @asenkut

Nir Eyal is the author of Hooked, which became Silicon Valley's playbook for building habit-forming products, Indistractable, on taking your attention back, and the new book Beyond Belief. He taught at Stanford's Graduate School of Business and is one of the sharpest thinkers on what to do with technology. In this episode of Summation, Nir and Auren discuss: Why to-do lists set you up to feel like a failure and what to do insteadWhy 90% of the time you check your phone, it's an uncomfortable emotion, not a notificationWhy beliefs are tools, not truths, and how swapping one can end your sufferingWhy this is the safest generation of kids in history and still gets a moral panicYou can find Auren Hoffman on X at @auren and Nir Eyal on X at @nireyal

Geoff Mattson is the CEO of SecureAuth, an identity security company that has raised over $200M and protects more than 50 million identities for enterprises. Before SecureAuth he was CEO of Xage Security. His work now centers on how you prove an AI agent is who it says it is. In this episode of Summation, Geoff and Auren discuss: Why an AI agent is like an Uber driver who might randomly turn into a psycho killerThe deepfake fraudpocalypse, and the simplest thing that defends against itWhy your agent impersonates you instead of working for you and how to fix itWhy the password is finally, actually dyingYou can find Auren Hoffman on X at @auren and Geoff on Linkedin

Cory Gardner is a former U.S. Senator and Congressman from Colorado and was one of the Senate's leading Taiwan and China experts, chairing the Foreign Relations subcommittee on East Asia and authoring the Taipei Act. He is now president and CEO of NCTA, the Internet & Television Association, whose members built the nation's largest broadband platform. In this episode of Summation, Cory and Auren discuss: Why the AI race gets won on spectrum, fiber, and memory chipsThe bottleneck raising the price of your iPhone, PlayStation, and routerWhy an open society is vulnerable to a campaign to turn Americans against AIWhat a China expert thinks about our dependence on chips made off China's coastYou can find Auren Hoffman on X at @auren and Cory Gardner on X at @CoryGardner

Harjot Gill is the co-founder and CEO of CodeRabbit, the AI code review company that became the most installed AI app on GitHub and GitLab. Over about two years, CodeRabbit went from zero to over $50M in ARR and a $1B+ valuation. It is his third startup. In this episode of Summation, Harjot and Auren discuss: Why the bottleneck in software just moved from writing code to reviewing itWhy mature companies now adopt AI firstWhy you should never let a coding agent review its own workThe playbook that took CodeRabbit from zero to $50M+ in two yearsYou can find Auren Hoffman on X at @auren and Harjot Gill on X at @harjotsgill

Moritz Baier-Lentz is one of the foremost investors in gaming, AI, and frontier technologies—including companies like OpenAI, SpaceX, Palantir, Etched, Decart, and Recursive. He founded Goldman Sachs's global gaming practice and was previously a partner, IC member, and head of gaming at Lightspeed. Moritz is part of the founding team of General Intuition, an AI research lab training agents on video game data, which has raised a $133M Seed round and a $320M Series A. He is also a senior advisor to OpenAI, McKinsey & Co., and TPG Capital. In this episode of Summation, Moritz and Auren discuss: Why video games are the best data set for the next phase of AIThe idea that humans only truly learn during playWhy Germany's fear of risk is culturalGetting into Stanford with an essay about Diablo IIYou can find Auren Hoffman on X at @auren and Moritz Baier-Lentz on LinkedIn or his website.

Ronnie Chatterji is the Chief Economist at OpenAI, where he leads research on how AI reshapes growth, jobs, and the economy. He is also an economics professor at Duke. He was previously the White House CHIPS coordinator implementing the $52B CHIPS Act, and before that the chief economist at the US Department of Commerce. In this episode of Summation, Ronnie and Auren discuss: The three things people actually do with ChatGPTThe 10x jump in people handing their work to AI Why the next big leap in AI is adoption and not capabilityThe case that AI could cause a population boom You can find Auren Hoffman on X at @auren and Ronnie Chatterji on X at @RonnieChatterji

Felix Rieseberg leads engineering for Claude Cowork and Claude Code Desktop at Anthropic. Before that he led desktop and web infrastructure at Notion and built software at Stripe, Slack, and Microsoft.  In this episode of Summation, Felix and Auren discuss: The next AI step function: going from solving a problem to owning a responsibilityWhy AI will win many Nobel prizes before it wins a single PulitzerBringing AI into the physical world, from a $30 coffee-machine display to a Wi-Fi garage openerWhy "here's what your team can learn from the Navy SEALs" is bad management adviceYou can find Auren Hoffman on X at @auren and Felix Rieseberg on X at @felixrieseberg

Brendan Wallace is the Founder, CEO & CIO of Fifth Wall, the largest investment firm focused on technology for the built environment, with ~$3B in capital, the firm is driving the growth of nearly 170 companies, backing category-defining PropTech leaders such as Opendoor, Procore, Blend, Hippo, and Bilt Rewards. It's supported by ~115 of the world's largest real estate owner-operators including CBRE, Hilton, Hines, Marriott, Public Storage, Related, and Starwood. Before Fifth Wall, Brendan was at Goldman Sachs and Blackstone, and he co-founded Identified (sold to Workday) and Cabify.  In this episode of Summation, Brendan and Auren discuss: How remote work protected mediocrity for yearsThe data center land grab: powered land, 2037 grid connections, and bring-your-own-solarHow land is the most stable asset on earth and there's still no way to buy an index of itWhy "capital-intensive businesses are bad for venture" is no longer trueYou can find Auren Hoffman on X at @auren and Brendan Wallace on X at @BrendanFWallace

Jim Rebesco is the co-founder and CEO of Striveworks, an AI ops company deployed across the US Army, Navy, and combatant commands. In April, Striveworks announced a $70M enterprise agreement with the Pentagon, giving nearly a million defense personnel access to its platform. Jim was previously a partner at Virtu Financial, a pioneering high-frequency trading firm. In this episode of Summation, Jim and Auren discuss: why the real question in AI warfare is who pushes the buttonthe case that autonomy favors big nation states, not insurgentswhy it costs $200,000 to procure anything in the Pentagonwhat high-frequency trading and war have in commonYou can find Auren Hoffman on X at @auren and Jim Rebesco on LinkedIn

Carson Block is the founder of Muddy Waters Research, one of the defining activist short-selling firms of the last decade and a half. Since 2010, Muddy Waters has published forensic research exposing accounting fraud at publicly traded companies across China, Europe, and the US and has been right enough times that 11 companies have been delisted as a result. In this episode of Summation, Carson and Auren discuss: why outright fraud is only 20-25% of Muddy Waters'  focusthe Wirecard sagawhy high-trust countries like Germany are a paradise for criminalshow the thing that killed Enron is still completely legalYou can find Auren Hoffman on X at @auren and Carson Block on LinkedIn and on X @muddywatersre

Anders Jones is the CEO and co-founder of Facet, a fintech company built to bring high-quality, flat-fee financial advice to an underserved market: the mass affluent. Facet has raised over $250M and manages more than $7B. Anders has seen the real finances of tens of thousands of households. In this episode of Summation, Anders and Auren discuss: why the percentage-of-assets fee is the greatest heist in financethe retention data showing people stick 3x longer when you help them act, not just advisethe horizontal wealth transfer to spouses that nobody is planning forwhy most companies should never raise venture capitalYou can find Auren Hoffman on X at @auren and Anders Jones on LinkedIn