Jeff Fluhr co-founded and led StubHub through the dot-com crash, giving him direct experience building a major marketplace during severe downturns that he now uses to advise founders on operating through tough economic cycles. He writes detailed operational playbooks on topics like recruiting and applies marketplace-specific metrics and discipline to his investing, particularly focusing on how AI can improve real business outcomes rather than being purely a technology story. Jeff Fluhr co-founded and led StubHub through the dot-com crash, giving him direct experience building a major marketplace during severe downturns that he now uses to advise founders on operating through tough economic cycles. He writes detailed operational playbooks on topics like recruiting and applies marketplace-specific metrics and discipline to his investing, particularly focusing on how AI can improve real business outcomes rather than being purely a technology story.