<human>:  I'm having trouble understanding why the stock market crashed. Could you explain it to me?
<bot>: The stock market crash is a complex phenomenon that can be caused by a variety of factors. One factor is economic uncertainty, which can lead investors to be wary of investing. This can cause a decrease in confidence, which can lead to investors selling stocks, resulting in lower stock prices. Additionally, when large investors sell stocks, such as mutual funds, pension funds, and hedge funds, it can cause a decrease in market liquidity, leading to further stock selling. This ultimately results in the stock market crashing.