Microsoft has poured a lot of resources into the project silica project to permanently store data in a single write archive, such as glass. Today, Microsoft Institute introduced a new project called HSD, which is characterized by the ability to store data as rewritable holograms, and therefore is suitable for use in cloud environments. Cloud applications, for example, have freed them from the constraints of developing and implementing for consumers, such as controlling the size of the drive at 3.5 inches, the team said. Thanks to the progress of consumer optics and AI technology, the storage density has doubled from the early stage, and the team is now working on higher density and faster access rate. We have deployed the latest high power fiber laser system to reduce the read and write time by one order of magnitude and achieve higher access rate. From the external HSD project, the high resolution LCOS spatial light modulator and camera technology promoted by the display industry and smartphone industry are used respectively to greatly improve the storage density. In the current technology, researchers must use complex optical instruments to achieve one-to-one pixel matching from display equipment to camera, thus maximizing density. Now, HSD teams can move complexity back to the digital domain with commercial high-resolution cameras and modern deep learning technologies. This enables them to utilize simpler, affordable optics without pixel matching and compensate for optical distortion through commercial software and hardware. The method can also reduce manufacturing tolerance because it can calibrate and compensate the system by software at runtime. Combined with commercial high-resolution components and deep learning technology, storage density can be increased by 1.8 times compared with current technology. The Microsoft Research Institute also hopes to further improve the speed and capacity of reading and writing, so as to create a customized technology for cloud applications, and its access speed and storage density will be far beyond the previous versions. Spontaneous combustion at a Guangzhou Motor vehicle intersection and other traffic lights in Shenzhen