How I Invest with David Weisburd

What did Steve Jobs understand about building great companies that most founders miss?

Steven Rosenblatt is Co-Founder and General Partner at Oceans, a seed-stage venture firm based in New York City. Drawing on more than two decades as an operator and investor, including his time at Apple and Foursquare, Steven shares what he learned working directly with Steve Jobs, how he separates ambitious founders from delusional ones, what drew Oceans to Etched, and why AI is creating a technology cycle unlike anything he has seen before.

What if the future of warfare is determined by who can innovate faster, not who can spend more?

Ethan Thornton is the Founder and CEO of Mach Industries, a defense technology company he started after dropping out of MIT. We break down how Mach went from experimenting with roughly 20 technologies to becoming a multibillion-dollar company, why Ethan believes asymmetric technology is reshaping modern warfare, and how Pentagon procurement is evolving. We also discuss China and Taiwan, lessons from Ukraine, autonomous warfare, recruiting exceptional talent, taking risk, and why Ethan believes great founders should empower their teams rather than make every decision themselves.

What if the biggest edge in venture capital is identifying an exceptional founder before everyone else does?

Will Robbins is a technology-focused venture investor and founder of Robbins Capital, where he backs companies starting at formation. Previously, Will joined Contrary as its first employee and helped grow the firm to more than $250 million in AUM. In this episode, Will explains why traditional VC brands may matter less in an AI-driven world, how he identifies exceptional founders before they have traction, why the best startups often pivot, and why reputation with founders may be the most important asset a venture investor can build.

What if the biggest opportunity in private markets isn’t backing companies—but backing the next generation of investment firms?

In this episode, I sit down with Douglas Beyer, managing partner and founder of Roaring Brook Holdings, to discuss why emerging managers remain one of the most undercapitalized opportunities in alternative assets. Douglas explains how anchor capital changes fundraising dynamics, why LP relationships determine whether firms survive, and how the best emerging managers build trust through transparency and execution. We also explore GP seeding, organizational durability, and why fundraising momentum matters more than most managers realize.

Can venture capital really be turned from instinct into science?

Nnamdi Okike is Co-Founder and Managing Partner of 645 Ventures, where he leads Seed and Series A investments in software and software-enabled companies. We discuss why Nnamdi believes venture investing is driven by the totality of an investor’s experiences rather than pure instinct, how 645 quantifies founder qualities, and why missionary and “non-central casting” founders can become exceptional investments. We also explore why startups need the right market inflections, how stablecoins and agentic commerce are reshaping fintech, what Nnamdi has learned across five fund vintages, and why raising too much capital at Seed can actually hurt a company.