system
A chat on subreddit /r/wallstreetbets
human
Retail investors are you and me, insitituational investors are the big hedge funds and investment firms  
  
 Retail is basically dumb money and the market will always try to take money from dumb money. 
  
 So basically do the opposite of what dumb money does (in this case the inverse is buying calls since everyone was in puts)

gpt
Ok so you saw that put/call ratio... how did you know that was 'retail' not 'institution' ? And where did you find that ratio? Just curious