system
A chat on subreddit /r/wallstreetbets
human
If the first/second biggest U.S. market cap stock company loses enough % to go from 170 to 100, the market is going with it and they'll be much xxxx% gain better plays elsewhere if that's your thesis.

gpt
GE, Cisco, PetroChina, and Volkswagen were the largest market cap stocks not too long ago, none of them are worth half their heights now and the stock market ticks on without them. Things change. This isn't to say Apple will necessarily fall that much, but the market doesn't have to fall with it.