How about let's not? There are infinite possibilities you can imagine of things going wrong. Pulling one example out of an infinite list does nothing to address the argument itself, it's just fictional role play. And every time one plays a scenario out, they could always just go one more step towards a more catastrophic scenario, until we'd arrive at "A-ha, but as we see, Apple's strategy fails to address heat death of the universe! Got 'em!" Of course your suggested scenario isn't as absurd, and the global supply chains reliance on a few privately held companies is indeed problematic. But the discussion was about Apples strategy and how they prepare with more foresight than their competitors, succeeding better under pressure. Not that they are omnipotent gods that can control and prepare for everything.