Learn from mistakes. Preferably other people's.

A working encyclopedia of business blunders

documented cases

How to use it

Planning something? Hand this archive to your AI.

Show it a plan, and it checks these 6228 documented cases for who already made the same mistake, and what it cost them.

2026Anthropic

Anthropic settled a $1.5B copyright lawsuit — the price of training AI on pirated books

pirated books used to train AI models$1.5B settlement, forced destruction of pirated files
the file →