When you first hear “2008 financial crisis,” it’s tempting to think it was simple: people bought houses they could not afford, banks failed and the world went into recession. However, that explanation is only the tip of the iceberg.

To an Apollo Scholar, the 2008 crisis is a story about modern finance, mathematical trickery and the global consequences of risky behaviour. It is the story of how a local housing problem became a worldwide financial disaster, and how small mistakes in lending and investment turned into a perfect storm.

In this chapter, we break down the three key structural failures that created this disaster:

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.