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  01 The development history of China's e-commerce The 20-year changes of China's e-commerce, from the embryonic period to the mature stage, have gone through multiple stages of development and change. These stages have witnessed the gradual transition of e-commerce from the initial B2B model to today's mobile shopping and new retail models. △ Embryonic period (1997-1999) In the  embryonic stage , due to the relatively low level of informatization and the small base of online shoppers, the public's understanding of e-commerce is limited. Domestic e-commerce websites are still in a state of exploration and embryony, and their main business is to assist small and medium-sized enterprises in B2B foreign trade transactions. During this period, e-commerce platforms such as China Chemical Network, 8848, Alibaba and eBay were born one after another. △ Infrastructure period (2000-2007) With the continuous progress of Internet technology, the progress of Internet technology  dur...

  Pictured: The scale of the hydropower project in the lower reaches of the Brahmaputra River exceeds the "three Three Gorges". The picture shows the flood discharge of the Three Gorges Dam. \Xinhua Recently, the Chinese government approved the lower Brahmaputra hydropower project. At a regular press conference of the Ministry of Foreign Affairs held on the 6th, a reporter asked about India's concern about China's construction of a large dam in Tibet. In this regard, Foreign Ministry spokesman Guo Jiakun said that China's construction of the lower reaches of the Brahmaputra River hydropower project, after rigorous scientific demonstration, will not have a negative impact on the ecological environment, geology and water rights and interests of downstream countries, but will be conducive to downstream disaster prevention and mitigation and climate change to a certain extent. Some analysts believe that the hydropower project in the lower reaches of the Brahmaputra Ri...

Empires fell, libraries burned down, people died, but the tangible heritage of humanity can be traced back to ancient archaeological objects left by predecessors around the world, historians and archaeological researchers have found ancient records in stones, parchments and papyrus, and humanity today does not leave many records that can be read with the naked eye without the need for technical media, technical equipment, software and technical knowledge. Imagine a catastrophic global electromagnetic storm that has destroyed the planet's digital information infrastructure, and these terrible fantasies seem far removed from current reality and closer to dystopian science fiction films, but it seems important to present this idea as a strange thought experiment that our current records are so digitized that many wonder what documentary evidence is left for future historians who want to study our current civilization. Writers, writers, publishers and even journalists currently use com...

  Author|Zhou Ya When it comes to quantum computing, the American theoretical physicist Richard Feynman once said something memorable: "Nature is not classical, and if you want to simulate nature, you'd better turn it into quantum mechanics." ” Over the past 30 years, quantum computing has had a fundamental challenge: as the number of qubits increases, the error rate rises dramatically. However, this seemingly insurmountable gap has now finally dawned on a breakthrough. On November 23, 2019, Google published a quantum computing breakthrough in the journal Nature, Google's superconducting quantum chip  Sycamore  completed a calculation in only 200 seconds, and the world's fastest supercomputer takes 10,000 years. Sundar Pichai, Google's CEO at the time, likened it to "the Wright brothers' first 12-second flight." On December 10, 2024, Google published the research results of the latest quantum chip  Willow  in Nature, which once again made a miles...

  Last year, Amazon announced a blockbuster news that it would stop operating its Kindle e-book store in China from June 30, 2023. In the blink of an eye,   today, July 1, is the first day that Amazon stopped operating its Kindle e-book store in China, and   from today onwards, users will no longer be able to purchase new e-books, while e-books that have already been purchased can be downloaded until June 30, 2024. On this special day, we noticed the book " Working Backwards: Insights, Stories, and Secrets from Inside Amazon" , which is called "Amazon's Management Handbook", in which two former executives who worked at Amazon for more than many years, Colin Bryar and Bill Carr, share in detail the secrets of Amazon's business success. Among them, Colin Bryar joined Amazon in 1998 as a technical advisor (also known as Jeff's Shadow) to Jeff Bezos and later as vice president of operations, where he observed and participated in important Amazon decisions, i...