a16z's Martin Casado: VC debates are a mess because investors mix four conflicting mindsets

a16z · x · 2026-10-29

a16z partner Martin Casado argues VC debates devolve into "a muddled, incoherent mess" because investors pull from four conflicting mindsets: Financial (judge on churn/margin/growth), Productive (tech creates new markets, TAM secondary), Frontier (back the best founders before anything works), and Speculative (bet on market perception, focus on price and timing). Each is coherent alone but mixing them breaks arguments. He quotes Arthur Rock: "what I'm interested in is investing in people."

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