In a turbulant sea however, shielding against a large wave out to sink you, with another large wave that 'you' have accumulated for yourself may not happen.
It may also happen that whole large 'ocean' is to a large measure nothing more than a big bubble. Apple may have as many tens of million iPhones unsold, as they may have sold, the purchaser (at usd 600) may have borrowed money from banks (credit cards) who them selves in turn would have invested heavily in Apple to 'buffer' themselves. The buyer of iPhone is also a share holder of Apple presumably. So in future if Apple reports losses, it will be difficult to know who will loose and how much.
The scenario can be complicated progressively, by including more dependancies and 'circular' involvement. Mathematical solutions beyond two or more 'dependency on dependencies' however will not be possible or dependable.
Catastrophic break down of systems is never predictable with much accuracy.
After the catastrophe strikes nobody cares either. Most participants perish with them.
The survivors were either not involved with them, or most often can do nothing more than pick up the rudiments and start building again.
Albeit at much much lower levels compared to those prevailing before the catastrophe hit.
