My boy is of 6 years old. And his birthday is one day before mine. Yes, he was born before my birthday and I spent my birthday in hospital that time. He was the first born and my feeling was great. I could tell that but just feel great. When I saw him, he was so tiny and quiet. One of my family said, he was so quiet and lovely. When I told him that it would be my birthday in two hours, he said, then he was the gift from the god. I had never thought that but I have to say I was hit by his words. Damn, what a lucky man to have such a great gift. I could not believe it.

As autumn approaches, the muggy weather and the chattering crickets in the grass suddenly pull my thoughts back to the past. Everything feels so familiar. Yet, times have changed, and it is no longer like the old days. The people around me are long different, leaving me with sighs and mixed emotions.

Growing up in China, early autumn always marked the beginning of the school year. In my heart, there was an inevitable reluctance to let go of the summer vacation, mixed with anticipation for the new semester, the new school year, and the new environment, along with a lingering sense of apprehension about facing the unknown. My deepest impression is the day I transitioned from elementary to middle school. My mother had been worrying about me ever since school started—the new environment, the new teachers, everything was new. Moreover, I was a day student, and the school was two kilometers away from home. I had to eat three meals a day, which, plus the evening self-study, meant making four round trips daily. I was dark and skinny back then, and my mother was always afraid I wouldn’t be able to handle the physical toll and couldn’t last a single day.

Sandboxing in computing is a security mechanism that runs programs (or code) in a tightly controlled, isolated environment. The goal is to limit what the code can access—files, network, processes, devices, or the host system—so faults, bugs, or malicious behavior stay contained and cannot harm the rest of the machine or other workloads.

Common uses include testing untrusted code, malware analysis, multi-tenant cloud services, browser tabs and apps, and running AI-generated or agent-driven code safely. With agent development taking off, sandboxes are showing up everywhere again—and the design choices matter more than the marketing labels.