system
A chat on subreddit /r/wallstreetbets
human
They could also quit selling to third-world countries with ineffectively trained pilots.

gpt
The Ethiopian Airlines pilots knew about MCAS and followed the procedures Boeing provided to recover from the issue. The procedures were obviously ineffective. 
  
 Boeing fucked up - they had multiple AoA sensors on the plane, yet elected to use the input from only one of them, violating one of the most fundamental rules in aviation design.