Google Research Finds AI Speeds Work but Halts Junior Judgment Growth
A 90-day field trial conducted by Google Research and the National Bureau of Economic Research reveals that while AI accelerates task output, it fails to improve unassisted junior judgment. Senior practitioners gained substantial unassisted skill, while juniors stagnated.
Why it matters
Tech leads must enforce unassisted code reviews and debugging drills to prevent junior engineers from falling into passive AI-dependency traps.
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