system
A chat on subreddit /r/wallstreetbets
human
where futures trade at midnight have no bearing on where spy will open at 9:30, this is because futures can go from red to green or vice versa in no time at all. 
  
 Don't go to bed at 10pm thinking you'll wake up to the same futures prices, that's just dumb.

gpt
in the instance i was talking about futures were 3%+ red as late as 8am. i guess I'm wrong about futures being unreliable in general. i only started monitoring futures regularly as of a couple months ago so i only know about recently. but at least recently, they have been super super unreliable