The AI Productivity Gap: Coding Is Faster, Overall Output Barely Budges

The AI Productivity Gap

Bjorn Roche breaks down a senior dev's day: even if AI makes coding 3x faster, total time saved is only 1.25 hours, a ~15% gain. Writing new code is a small slice of the job; design, reviews, and meetings remain untouched. Junior devs save 2 hours (25% gain) because they spend more time coding. AI-written docs also slow down reading. The takeaway: don't expect dramatic team-wide productivity jumps yet, and don't stop hiring juniors—they benefit most from AI.

Why it matters: A first-person breakdown with real numbers that pulls 'AI productivity' out of hype territory. Senior devs save 1.25 hrs/day (15% gain), juniors 2 hrs (25%)—more useful than most industry reports. Not scored higher because it's a personal blog, not a new study or product launc...