The Average Is a Decision
Ask a generative AI system almost anything and you get the "consensus", i.e., the middle of everything that it was trained on.
It's usually reasonable, and often useful. But that can be a problem.
A wrong answer invites you to check the work while a reasonable answer does not.
- Michigan's MiDAS (2013–2015): a rule-based automated system flagged unemployment fraud with no human review. 93% of the 22,000 determinations examined involved no fraud. ~40,000 people accused; some lost homes or filed bankruptcy.
- Australia's Robodebt: took annual income, divided it evenly across the year, and treated that average as fortnightly earnings. Fine for steady work; wrong by construction for casual or seasonal work. Wrongly recovered A$700M+ from ~400,000 people.
The average described nobody in particular, and the harm fell on the people it described least.