a16z's Casado: Gen AI Is Like Metal-to-Plastic Shift—Lower Quality, Much Bigger Market

nptacek · x · 2026-10-19

a16z partner Martin Casado draws an analogy between generative AI software and the shift from metal to molded plastic in physical goods: total quality drops, but far lower cost massively expands the market, and market forces drive price/quality toward Pareto optimality over time.

The take frames AI's "quality compromise" economically—cheap output grows the market, and competition eventually rebalances price and quality.

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