Reading Time: < 1 minute High profile or high impact outage or incidents are just a way of the life in modern internet, or public cloud. The key is to recover quickly from the incident, and learn from those incidents: post mortem analysis, or in some places they do root cause analysis or RCA, and in my personal opinion, RCA

Reading Time: < 1 minute I listened to or watched a few interesting youtube video and or twitter space recently. The most significant one is the “storytelling”, I believe this is probably as important as “compounding effect” in investing and life time learning. Below is the youtube video, how to speak, by Prof Patrick Winston of MIT Twitter Space (how

Reading Time: < 1 minute My old daughter Serenity is a sweet girl. She is so sweet so that she doesn’t like competition. I get it I don’t like competition either but if I don’t compete I probably won’t be here. Lots of smart kids in my class of probably 40 in the village elementary school in China in late

Reading Time: < 1 minute I am thinking about this, also there was an ask from two parents. Some of the things I think I can start at first class, also some of the things I am thinking about teaching (more systematic). Starter: raspberry pi (and micro bit), coder master (Sophia’s game), the lego technic motor sets (not coding but

Reading Time: 2 minutes (Update 01-07-2022) The Chinese school starting date for Winter / Spring semester is pushed out by 2 weeks. So the below class will start on Jan 23rd instead of Jan 9th, 2022. Please refer to the SLMCS class link for more up-to-date details. (Original) “Youth self defense” class in the STL Modern Chinese school, this

Reading Time: 2 minutes (Update: 10-04-2023) The Olive Crossing apartments at Olive and 170 just opened as the Clover luxury apartment. I have a recent YouTube video on this. (Update: 09-11-2023) Yesterday I noticed the new Hilltop West development: My YouTube video when I walked by yesterday am, the Olivette City Website, and a Zillow link (and developer website,

Reading Time: 2 minutes Looking at the 5, 10, and 20 years chart of $CAT, $LUV and $SPY, then $MA. It seems in 5 and 20 years, $CAT beats $LUV and $SPY, while the 10 year performance was the opposite. Note I haven’t counted the dividend (or dividend re-investing in all cases). Then when I put the $MA in

Reading Time: < 1 minute The self checkout at grocery store and warehouses. Personally I think Costco $COST got it right, they have plenty of staffs to assist: for scanning as well as alcohol overwrite. Sam’s Club has one staff helping multiple lanes, but it also has a #scanandgo option in its app. /1 The scanning feature in the app

Reading Time: < 1 minute 感觉这个市场还是有些泡沫的. EV 就不说了：昨天傍晚🌆的时候开车时我的七岁小女儿说看到一个Tesla. I was thinking buy a share of $TSLA just now, but I changed to $F instead [呲牙] || Separately I noticed NerdWallet the personal finance / credit card 💳 bonus website went public last week. I worked in the credit card rewards space in the past and I used to get some

Reading Time: 3 minutes For 12 factor application the No. 1 principle is one source code base. Today I was thinking about this topic: one sets of source code for one app, and use configuration for language, region or other different settings for different customers. And this reminded me of some of the articles I read (such as this