'Natch
I'm just an old geologist, I don't really understand these things either. But I have had some experience, just because of the companies I've worked for.
Here's the other aspect I'm not sure the book deals with: avoiding taxes. All that debt, then bankruptcy, is a write off. It is also a classic money laundering technique. It is super complicated. But that's the idea.
As Lao Tzu said, "the more complicated the laws, the more devious the criminals."
