If you've ever heard the phrase "bursting bubble" and felt your body tremble, it's not surprising because this concept is mostly associated with severe financial crises, economic downturns, and massive financial losses.

The core idea is that asset prices rise rapidly, but their true value does not increase accordingly. This is followed by a sudden decline, which is called a bubble burst, a recurring economic cycle throughout history.

When asset prices, such as stocks, real estate, or even cryptocurrencies, soar beyond their actual worth, it is often caused by speculation, excessive investor confidence, and the belief that prices will keep rising forever. But this extravagance is unsustainable. Reality eventually catches up, and the bubble bursts, leading to a sharp drop in prices.

Let's look at historical examples. The 2008 subprime mortgage crisis is a very good case study. Mortgage loans were approved for people unable to repay them. Many investors saw opportunities to profit from real estate speculation. Financial instruments linked to these loans became popular. The real estate market grew rapidly. As house prices soared, the value of these loans also increased. But when borrowers started defaulting, the entire system collapsed. The real estate bubble burst, triggering a domino effect that led to a global financial crisis. Bad debts from financial institutions worldwide reached $15 billion.

Thailand also experienced this in 1997 during the Asian financial crisis. At that time, deposit and loan interest rates were abnormally high. The real estate market was booming. Investors saw quick profit opportunities. Foreign capital flowed in. The result was a real estate bubble that caused property values to rise unreasonably. When the baht was devalued, foreign-denominated debt surged. The real estate market was highly leveraged. The bubble burst, property values plummeted rapidly. Many borrowers could not repay their loans. The Thai economy suffered a severe downturn.

There are many types of bubbles. Stock market bubbles occur when stock prices exceed the company's actual value. Real estate bubbles happen when housing prices rise beyond reasonable levels. Credit bubbles occur when lending expands rapidly, creating fragile situations. Commodity bubbles happen when prices of physical resources like gold, oil, or metals soar unsustainably.

Factors causing bubbles to burst come from various sources. Low interest rates encourage borrowing. A strong economy attracts foreign investment. New products or technologies increase demand. Asset shortages push prices higher. But what truly inflates a bubble is investor behavior.

When prices rise rapidly, everyone rushes in for fear of missing out. Speculation and herd mentality drive prices above their true value. Investors believe prices will keep increasing forever, ignoring warning signs. Eventually, people realize assets are overvalued, demand drops, and a panic sell-off ensues. Prices fall sharply. That is when the bubble officially bursts.

To protect yourself from a bubble burst, consider before investing: Are you investing out of genuine opportunity or just fear of missing out? Diversify your portfolio. Avoid excessive speculation. Invest gradually. Use dollar-cost averaging strategies. Invest small amounts over time. Keep cash reserves for opportunities. And most importantly, understand the market, stay informed, and research thoroughly before making decisions.

In summary, a bubble burst occurs when asset prices exceed their true value due to speculation and overconfidence. This excess is unsustainable. Eventually, people realize this and start selling, causing prices to fall rapidly. The factors leading to a bubble burst are many and often beyond human control. Therefore, what we should do is stay prepared, diversify risks, invest cautiously, and continually increase our knowledge.