AI Did Your Homework. 6 Months Later, Exam Scores Fell 20%.

Six stories, and every one is a number in good health sitting on top of a thing in bad health.

26,811 students got AI tools and their homework scores rose 18% almost immediately. Six months later their exam scores had fallen about a fifth, and nobody noticed for two years — because the number everyone was watching looked excellent the whole time.

Also: a supplier that paid its own customer, a million people pressing a button that changed almost nothing, ninety billion dollars and two empty chairs at the Justice Department, and a company that sells the machines, sells the harness, and now keeps the scoreboard too.

CHAPTERS
00:00 Cold open
00:43 The supplier that paid its customer
02:57 A million people pressed the button
04:26 The homework went up, the learning went down
06:42 The comment section is the only vote
08:06 Ninety billion dollars and two chairs
10:16 Nvidia says you measured the wrong thing
12:25 The score and the thing

SOURCES — every figure traces to one of these. Where reporting is thin or sources disagree, we say so on screen.
  - 404media.co
  - aiweekly.co
  - arxiv.org
  - automationanywhere.com
  - barrettmedia.com
  - businessinsider.com
  - digitaleducationcouncil.com
  - eastleighvoice.co.ke
  - forbes.com
  - github.io
  - inc.com
  - mediapost.com
  - nvidia.com
  - psychologytoday.com
  - pymnts.com
  - rand.org
  - scmp.com
  - slashdot.org
  - socialmediatoday.com
  - techstrong.ai
  - thestar.com.my
  - washingtonexaminer.com
  - ycombinator.com
  - youtube.com

Corrections and full citations are pinned in the comments.