system
A chat on subreddit /r/wallstreetbets
human
Any business is fine.  If you make money, then you are fine.  Just keep pursuing it - businesses need to grow to survive so if you are growing, you'll make money.  No better investment than a business, honestly.

gpt
This. Most people think 'that one great idea and i'll be rich and never work again!'  
  
 Nope. It's hours of grinding, refining, fine tuning, cutting losses, expanding profits... for decades. No shortcuts.