Last Saturday, I attended an investigator meeting in Beijing. I did online check-in before the trip and printed the air ticket in my office. To my delight, at the bottom of the ticket was the weather forecast for the next five days. The temperature would be 17 to 20 degrees Celsius. Although I was pleasantly surprised to encounter such warm weather at this time of the year, I duly brought a light jacket only.
As I arrived in Beijing and stepped out of the plane, a chill went down my spine. In fact, a chill went down my entire body. It suddenly dawned on me that 20 degrees Celsius was the temperature of Hong Kong.