system
A chat on subreddit /r/wallstreetbets
human
You don’t need diversification when your product is a necessity for many businesses and individuals
gpt
I think the biggest issue with Apple is it is heavily reliant on the iPhone. I mean it’s an iPhone company and has been for some time. 

With that said I also shared this concern before and Apple has managed to gradually increase their revenue gained from subscriptions and time and time again show an iPhone that is strongly desired even if each iteration’s success varies. So I’m not betting against Tim Cook.

But I do think Apple, Msft and Amazon are all great for different reasons.