Summation (formerly World of DaaS)

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 innovation
The death of physical community
Why Nextdoor had to change their stock ticker
Insider vs Outsider entrepreneurs
You can find Auren Hoffman on X at @auren and Nirav Tolia on X at @niravtolia.

Lieutenant General Mike Fenzel recently retired as a three-star Army General. He most recently served as the United States Security Coordinator for Israel and the Palestinian Authority, navigating one of the world’s most complex geopolitical landscapes. His career is defined by high-stakes leadership, ranging from the immediate aftermath of the September 11th attacks, where he was stationed in the bunker alongside Vice President Dick Cheney, to multiple deployments to Afghanistan, to commanding an airborne brigade of 5,500 paratroopers. Beyond the battlefield, Fenzel is a scholar of strategic decision-making. His book, No Miracles, analyzes the internal Soviet failures during their occupation of Afghanistan.
In this episode of Summation, Mike and Auren discuss:
Why the Soviets took four years to exit Afghanistan
Lessons from leading security cooperation in Jerusalem
Israel's dominance in security tech
Why US foreign policy experts keep failing
You can find Auren Hoffman on X at @auren and Mike Fenzel on LinkedIn.

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 industries
How drug discovery actually works (and doing it from prison)
Why AI labs are now out-recruiting hedge funds
What Martin learned from being "the most hated man in America"
You can find Auren Hoffman on X at @auren and Martin Shkreli on X at @MartinShkreli

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 Summation drops this Wednesday.
Thanks for the support, and welcome to the next chapter. 
Auren is CEO of NQB8, GP at Flex Capital, Chairman of Dialog; former CEO of SafeGraph and LiveRamp (NYSE: RAMP).

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 models
Why SaaS is dying in the age of AI agents
Disrupting the $30 trillion market for digital knowledge work
Building a stage five company culture

You can find Auren Hoffman on X at @auren and Jonathan Siddharth on X at @jonsidd.
Editing and post-production work for this episode was provided by The Podcast Consultant (https://thepodcastconsultant.com)