system
A chat on subreddit /r/wallstreetbets
human
Green day. Without those factors it would just be a pop from random comments from a vice fed chair who clearly needs a bit more coaching before speaking with the press. But when he said it the dollar and the bond yield reacted too. That means we're in for a green day.

gpt
I sincerely doubt it'll be green today.  It was likely filling the gap.