I suddenly realized that the Gulf War I watched on TV as a child was 35 years ago, the Iraq War was 22 years ago, Osama bin Laden was killed 15 years ago, the Twin Towers collapsed 25 years ago, Hong Kong's handover of sovereignty was 29 years ago, SARS was 23 years ago, Eason Chan's "Decade" was 23 years ago, the Beijing Olympics were 18 years ago, and the COVID-19 pandemic outbreak was 7 years ago. I once thought aging was something far away, but now I realize that being young was something long ago. Time is so fleeting, and in the blink of an eye, half a lifetime has passed.