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Investment Talk
Thoughtful essays about businesses, investing process and human behavior, written from a product professional’s perspective with room for uncertainty, curiosity and changing one’s mind.
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Perimeter People / Newsletter author · Investment Talk
Conor Mac
Conor Mac writes Investment Talk, which he began in 2020. His publisher biography describes an economics education and experience in fintech and startups, followed by product management at Koyfin. His essays draw on that background while examining public companies, investing processes and the human behavior that shapes an investor’s decisions.
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Profile checked September 18, 2026. Editorial notes are Perimeter’s interpretation.