system
A chat on subreddit /r/wallstreetbets
human
What would you use?

gpt
Interactive brokers, by far trump both platforms. but using webull for my DD and charting. I'm from the UK too. 
  
 Best way to short for the no deal Brexit leave would be playing futures, betting on pip movement per a point, say the FTSE goes down 10 pips you can bet say £5 a point will give you £50, huge earning on large movements if you get your charting right