在炎熱的夏天，踩進游泳池淺水區，戴上蛙鏡，盯著水面放空。有的人說可以看見彩虹，有的人說那是暈水和中暑的合併症狀。

In the sweltering summer, I step into the shallow end of the pool, put on my goggles, and stare at the water’s surface in a daze. Some say you can see a rainbow; others say it’s just a mix of water-induced dizziness and heatstroke.