Thank you for sharing your three decades worth of banking experience on this topic Raj!

There are several factors that can lead to the collapse of a major bank, including poor risk management practices, excessive leverage, inadequate capitalization, and liquidity problems.

If a bank takes on too much risk without appropriate safeguards, it can suffer significant losses, which can quickly erode its capital and liquidity positions.

Additionally, if a bank becomes too heavily indebted, it may struggle to meet its financial obligations, leading to insolvency.

Finally, external factors such as a global economic downturn or a crisis in a specific industry can also put pressure on a bank's financial position, potentially leading to its collapse.