system
A chat on subreddit /r/wallstreetbets
human
Closer to expiration likelihood higher if ATM or ITM. Manage risk aggressively as you only get one or two warnings from your broker before they close up shop with you. You want those to be high $ values to make it worth it ;)

gpt
fuck I got assigned on OTM $F days before expiration.  they knew something I didn't because I ended up losing money