system
A chat on subreddit /r/wallstreetbets
human
Research, and stringent rules.  Plus I trade with two other people and all positions must be unanimous votes.  Today for example I opened up 500 call spreads on FB after consultation and agreeing on potential risks due to expiry date.  It's a careful, annoying process...but when you are making plays with millions, it should be.

gpt
What about new untapped technology that could really go such as 5G?