Finance & Economy

Entrepreneurship in the Age of AI with Jeff Bussgang

June 11, 2025

Entrepreneurship in the Age of AI with Jeff Bussgang

Jeff Bussgang

Co-Founder & General Partner, Flybridge Capital Partners and Senior Lecturer, Harvard Business School

It was a privilege to welcome Jeff Bussgang, Co-Founder and General Partner at Flybridge Capital and Senior Lecturer at Harvard Business School, to the Walker Webcast.

A long-time friend and a brilliant thinker, Jeff joined me to discuss his new book The Experimentation Machine: Finding Product-Market Fit in the Age of AI. Whether you're an entrepreneur or leading a scaled organization, Jeff’s insights offer a critical roadmap for navigating today’s rapidly evolving landscape.

From minimum viable products to AI-native startups

The core of Jeff’s book centers around a seismic shift in how startups operate. Tools like ChatGPT and autonomous AI agents are allowing founders to iterate with lightning speed, reducing the time to product-market fit from years to weeks or even days. Businesses like Squire, TalkTastic, and Topline Pro, all featured in the book, are testaments to how this new era of "AI-native" startups is redefining entrepreneurship.

Take Topline Pro: its founders, HBS dropouts Nick and Shannon, are leveraging AI to identify, market to, and onboard contractors in rural communities. With AI-powered outreach and personalization, they've transformed the economics of customer acquisition for small businesses. That’s no small feat.

A new model for scaling

Jeff described a fundamental change in early-stage investing: the rise of "seed-strapped" companies. These startups might raise a few million in seed capital but scale to millions in revenue with teams of five or fewer people, augmented by hundreds of AI agents. One Flybridge portfolio company reached $10 million in revenue with just six employees. That’s the power of AI productivity.

This shift isn't just disrupting how companies are built; it's also reshaping who gets disrupted. Legacy businesses with deep moats, once thought safe, are now vulnerable to lean AI-native challengers moving at unprecedented speed.

The “HUNCH” framework for assessing product-market fit

Jeff shared Flybridge’s proprietary “HUNCH” framework for evaluating whether a startup has product-market fit:

  • Hair-on-fire value proposition
  • Usage behavior
  • Net Promoter Score (NPS)
  • Churn
  • High unit economics

While designed for startups, this framework has valuable applications for established companies as well. At Walker & Dunlop, we’re applying the same lens to assess where we’re delivering must-have value and where we’re investing time with clients who might never truly convert. It's about focus and being honest with ourselves.

How established companies should respond

In addition to talking about startups, Jeff offered practical advice for leaders of scaled companies: integrate AI scorecards into performance reviews, run internal hackathons, and embrace reverse mentoring. Companies like Shopify and Duolingo are leading the way, embedding AI into core operations and setting a high bar for innovation.

We also discussed how AI can transform legacy industries. Lending, for example, has long struggled with customer discovery in underserved markets. AI can now identify small-balance borrowers more efficiently than ever, effectively reshaping how companies like Walker & Dunlop approach growth.

The ethics and risks of an AI-first world

Jeff didn't shy away from the darker side of AI. From deepfakes to model training on copyrighted content, the challenges are real. However, he remains optimistic, emphasizing the importance of ethical stewardship and secure infrastructure. He even predicts a name change for Salesforce to “AgentForce,” a nod to the centrality of agentic AI in the near future.

Revenge of the liberal arts?

In a surprising twist, Jeff shared that he’s not advising his kids to pursue computer science degrees. Instead, he believes the rise of AI elevates the value of strategic thinking, communication, and discernment. “The AI will do whatever we tell it to do,” he said. “But discernment is the real question.”

Want more?

As host of the Walker Webcast, I have the privilege to converse with fascinating people like Jeff Bussgang every week. Subscribe to the Walker Webcast to see our upcoming guests.

Interested in purchasing The Experimentation Machine? Walker Webcast listeners will receive a 20% off discount code (automatically applied at checkout). You will also get a free eBook version with purchase.

Read Transcript

The Experimentation Machine: Finding Product-Market Fit in the Age of AI

Jeff Bussgang

Co-Founder and General Partner, Flybridge Capital Partners, Senior Lecturer at Harvard Business School

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My Reivew

This is a must-read for any business leader trying to stay relevant in the AI era. Jeff Bussgang lays out how startups are using AI to move faster and smarter, and why established companies need to rethink everything from client acquisition to product-market fit. I found it both eye-opening and actionable.

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