system
A chat on subreddit /r/wallstreetbets
human
The Titanic syndrome is when increasing companies doing bad in a good market - hitting 52 week highs in market but increasing numbers of companies hitting 52 week lows  
  
 Hindenburg is when rush of 52 week highs and 52 week lows both increasing, for example x% stocks above 52 week high while x% also below 52 week low.

gpt
Ty!  👏