It’s been nearly a month since the city-wide closure of Shanghai. But I have enough things to buy and distribute in my house that I have now evolved from the stage of worrying about running out of food to the stage of people running after the speed of food spoilage …Recently, I have been investigating the architecture design of the monitoring and alarming system. When I was cooking at noon today, I suddenly had a brain hole: Why can’t the alarm system be displayed — whether it be a real-time ...