system
A chat on subreddit /r/wallstreetbets
human
Options are a zero sum game, so for every dollar of theta lost, someone somewhere gains a dollar. 
  
 Just think about that for a second. Then also remember that all the big I-banks are mostly net sellers of options.

gpt
&gt; big I-banks are mostly net sellers of options 
  
 They are also net losers on the derivatives market (if you count recessions)