American Healthcare Systems I:美国的医疗系统系列之一

Reading Time: 3 minutes American healthcare systems are probably the most convoluted healthcare system in the world. The US probably has the world most advanced medical device and pharmaceuticals industry, many brilliant doctors and great hospitals, e.g., the BJC hospital in the St. Louis area, which is one of the top research hospital in the USA. At the same… Continue reading American Healthcare Systems I:美国的医疗系统系列之一

Production Incident

Reading Time: < 1 minute Had a production incident recently after production deployment. I was not intimately familiar with the oracle index charge (drop) and impact on other apps (lack of visibility and lack of perf testing environment). It’s hard to prevent this sort of thing from happening but I think as developers we should learn from those mistakes and… Continue reading Production Incident

US Consumer

Reading Time: < 1 minute Or American consumers. I did not realized that the consumer credit card debt skyrocketed recently until I saw a year at Twitter. This chart has about 4 years of data: both the credit card loan and personal savings. The source of data is from FRED (I think it stands for Fed Research Economic Data): I… Continue reading US Consumer

Categorized as Economy


Reading Time: 2 minutes I joined Twitter back in March 2008, and it’s been 14 years since I joined it. I don’t remember the exact reason I joined it, but I think one reason is probably in the early days of iOS (iPhone) app development, many developers are on Twitter as well. In recent years, the platform has expanded… Continue reading Twitter

Alternatives to Facebook, LinkedIn and Twitter

Reading Time: < 1 minute The three legacy social networks 🙂 I have been using the 3 for a while, since 2008 to be precise. I started using LinkedIn after I switched job in Nov 2008 (amid financial crisis), because I realized I want to look for a developer job quickly after I jumped ship. I cannot remember the reasons… Continue reading Alternatives to Facebook, LinkedIn and Twitter

My cars over the years

Reading Time: 4 minutes No I don’t drive the Rivian but I drive the Toyota Sienna next to it: owned it for 9 years now (since summer 2013). It was the main car (minivan) I drove in last 9 years, with the exception of sometimes I drove my wife’s Camry for the purpose of saving gasoline, or taking care… Continue reading My cars over the years

My Zhenhai Middle School Days我在镇海中学的日子

Reading Time: 6 minutes Our old daughter Serenity is entering 7th grade this school year, as I said somewhere else, in 6 years she will very likely attend college. Use her word, “I want to a quality college such as Columbia U”. I know she wanted to be a wildlife biologist and last I checked she has no intention… Continue reading My Zhenhai Middle School Days我在镇海中学的日子