据报道，亚马逊公司证实，当地时间3月1日下午4点30分左右，公司旗下的云计算部门AWS位于阿联酋的一处数据中心，因遭受物体撞击起火，消防部门在灭火过程中切断了设施的供电，致运行中断。AWS没有承认，也没有否认事故是否与当地正在遭受的袭击有关。预计受影响区域网络连接恢复需要数小时，目前，阿联酋境内其他设施的服务运行正常。（央视财经）
When I share stuff I'm working on, people frequently ask how I make games and are often surprised (and sometimes concerned?) when I tell them I don't use commercial game engines. There's an assumption around making games without a big tool like Unity or Unreal that you're out there hand writing your own assembly instruction by instruction.
。关于这个话题，PDF资料提供了深入分析
Verify the learning. Ask yourself: Would the system catch this automatically next time?
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