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Lenny's Podcast: Product | Career | Growth
Lenny's Podcast: Product | Career | Growth

Why humans are AI’s biggest bottleneck (and what’s coming in 2026) | Alexander Embiricos (OpenAI Codex Product Lead)

Dec 14, 2025 · 1h 25m
AI Summary
  • Alexander Embiricos reveals Codex has grown 20x since August by shifting from tool mindset to proactive AI teammate throughout development lifecycle
  • Human typing speed is the real bottleneck to AGI productivity, not model capability; OpenAI built Sora Android app in 18 days using Codex
  • Future bottleneck shifts from building to reviewing AI-generated work; coding becomes core competency for all AI agents

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