When you first hear “2008 financial crisis,” it is easy to reduce it to a simple story of people borrowing too much, banks collapsing and a global recession following. However, that explanation only scratches the surface. To understand how the 2008 financial crisis happened, you need to look deeper into the structure of modern finance itself, from risky lending and financial engineering to the global system that amplified small failures into a full-scale economic collapse. What began as a housing problem quickly became a perfect storm that exposed just how interconnected and fragile the global financial system really was at the time.

In this chapter, we break down the three key structural failures that created this disaster and explain how the 2008 financial crisis happened.

1. The shift from “boring” banking to risky subprime loans
2. How Wall Street turned “trash” into “gold” through financial engineering
3. The rise of the shadow banking system and high-risk borrowing

We will also explain the spark that lit the fire: rising interest rates, teaser mortgages and widespread defaults.