The article points out that the Philadelphia Semiconductor Index and the KOSPI Index entered a bear market in July by traditional definitions, yet even at their lows, these two indices were still up 46% and 25% respectively for the year. Market strategists and analysts believe that under the AI boom, the high volatility and long-term upward trend of tech stocks render the traditional bear market definition (a 20% decline) obsolete. Investors might miss out on potential gains by adhering to traditional labels.