system
A chat on subreddit /r/wallstreetbets
human
half trolling but also a true story: a few weeks ago, for one day, i saw a ton of posts making fun of anybody who had $300 SPY calls expiring that Friday.  to be a spiteful autist, i bought $300 SPY calls for the following Friday and doubled my money. 
  
 moral: sometimes, this sub can provide good ideas

gpt
Tl;dr reverse WSB