Core Viewpoint - The keynote speech by Zhang Chaoyang, founder and CEO of Sohu, focuses on the exploration of the solar system and its implications for human civilization, emphasizing the importance of understanding the laws governing the solar system as a key to understanding humanity's past and future [3][4]. Group 1: Solar System Exploration - The solar system operates under specific laws, and understanding these laws is crucial for humanity [4]. - Zhang Chaoyang describes the solar system as a "home" that is both distant and close, highlighting the need for exploration and understanding [4]. - The speech is characterized as a "archaeology" of the solar system, using Newton's laws as foundational principles to explore celestial mechanics [4][5]. Group 2: Human Advancement in Space - The development of AI and aerospace technology is propelling humanity towards a "multi-planet civilization" [3]. - Zhang outlines three key stages for human exploration beyond Earth: the escape phase dominated by Earth's gravity, the Hohmann transfer phase dominated by the Sun's gravity, and the capture phase dominated by Mars' gravity [6]. - The concept of Lagrange points is introduced as stable locations for deploying scientific instruments, such as the Webb Telescope [6]. Group 3: Educational Impact and Media Strategy - Zhang emphasizes the value of learning physics, which aids in understanding both macro phenomena like global warming and everyday experiences [9]. - The physics course has conducted 270 live sessions over four years, accumulating over 26,000 minutes of online content, contributing significantly to the knowledge base [9]. - The integration of traditional teaching with new media is seen as a meaningful approach to disseminating knowledge in the current digital age [9].

定焦One（dingjiaoone）原创 作者 | 张星星 这已经是张朝阳连续第三年站在跨年夜的聚光灯下，但如果仅把历年的演讲理解为一次个人兴趣驱动 的"硬核表达"，无疑低估了它的真实价值。 张朝阳的跨年演讲，不是孤立的内容输出。他曾强调，"我就是一名产品经理，必须亲自使用这款产 品"。在"CEO即产品体验官"的逻辑下，无论是跨年演讲，还是物理课、跑步、横渡等一系列看似"个人 化"的动作，本质上都服务于同一目标，即围绕着搜狐产品展开真实测试与持续打磨，从用户视角为平 台探索方向与边界。 如果我们将时间拉长来看，会发现张朝阳的个人IP早已与搜狐的产品路径、内容方向和平台定位深度绑 定，并逐步跑通了一套可持续的运行模式。 其物理课与跨年演讲不仅吸引了千万量级的观看，也带动了搜狐视频"关注流"产品的活跃与知识直播生 态的繁荣。这种以创始人IP为核心、以长期主义为基调的打法，已逐步跑通了从内容影响力到平台价值 的可持续发展路径，创始人影响力也真正转化为可被平台承接和放大的长期资产。 张朝阳跨年演讲年年受到关注的背后，或许代表着一种区别于追逐风口的商业逻辑：在快速变化的时 代，持续而专注地回归本质，本身就能构建起难以复 ...

Core Viewpoint - The keynote speech by Zhang Chaoyang focuses on understanding the solar system and its significance for humanity's future, particularly in the context of advancing AI and space technology towards a multi-planetary civilization [1][3]. Group 1: Understanding the Solar System - The solar system operates under specific laws, with Newton's laws providing a framework for understanding planetary motion [3][4]. - Zhang emphasizes that the solar system is not distant and unknown but rather a familiar home that requires understanding [3][6]. - The exploration of celestial bodies has led to significant advancements in physics, with historical figures like Tycho Brahe and Kepler contributing to our understanding of planetary motion [3][4]. Group 2: The Role of Tidal Forces - Tidal forces play a crucial role in the behavior of moons and planets, affecting their orbits and physical characteristics [6][8]. - Zhang explains how tidal forces can lead to phenomena such as the synchronous rotation of the Moon and the volcanic activity on Io, one of Jupiter's moons [8][9]. Group 3: Human Exploration of Space - The speech outlines three key stages for human exploration beyond Earth, starting with Lagrange points, which are stable locations for deploying spacecraft [9][11]. - Mars is highlighted as a potential destination for human exploration due to its similarities to Earth, with a detailed explanation of the Hohmann transfer orbit for efficient travel [9][11]. - The Voyager missions are noted as significant milestones in humanity's exploration of the outer solar system, utilizing gravitational assists to increase speed [11][12]. Group 4: Scientific Foundation for Speculation - Zhang stresses the importance of grounding speculative ideas in solid scientific principles, particularly in discussions about future space colonization [12][14]. - The audience is encouraged to engage with scientific concepts before delving into speculative scenarios, ensuring a robust understanding of physics [14][15]. Group 5: Educational Impact and Engagement - The integration of traditional teaching with new media has proven effective, with Zhang's physics classes reaching a wide audience and contributing to public knowledge [15][17]. - The emphasis on rigorous mathematical foundations in science education is highlighted as essential for fostering a deeper understanding of complex topics [15][17].

金星、木星、水星、火星、土星、天王星、海王星以及人类生活的地球——对于我们熟知的太阳系八大 行星，你是否尝试过用数理公式深入理解它们的运动轨迹和物理特性？ 在这场特别的跨年演讲中，我们将循着科学的轨迹，探寻太阳系行星运转的定律与奇观；重温从经典物 理到现代天体物理的认知征程；并在无垠的宇宙坐标中，重新审视人类的位置与探索的使命。 四年时间过去，《张朝阳的物理课》已开展270余场直播课、30多堂线下课，累计在线时长突破26,000 分钟，让深奥的物理理论回归生活，也让大众认识到"万物皆物理，处处是物理"。 明天22:00，搜狐创始人、董事局主席兼首席执行官、物理学博士张朝阳将以"我们所居住的太阳系"为 主题，硬核开启2026跨年演讲。这一次，他将带我们坐着思想的飞船，从太阳附近出发，去访问水金地 火木土星，与广大网友一起硬核推导太阳系的基本参数，展示数学与物理之美。届时，搜狐视频关注流 账号"张朝阳"将进行全程直播，诚邀大家共同在跨年之夜仰望星空，思考宇宙。 当我们仰望苍穹，或许会心生疑惑：在这浩渺无垠的宇宙之中，是否存在与地球相仿的星球，是否孕育 着神秘的地外生命？宇宙之辽阔，远超我们的想象，可观测的宇宙直径 ...

编者按：2025年，经济观察报以"我们的四分之一世纪"为年终特刊主题，旨在通过数十位时代亲历者的 故事，共绘一幅属于这段岁月的集体记忆图谱。 2025年冬日的北京，凌晨四点，当整座城市还沉浸在深沉的梦乡时，搜狐媒体大厦顶层的灯光如期亮 起，张朝阳总会准时出现在办公室。这种近乎苦行僧式的自律，已成为他"重塑"后深入骨髓的习惯。 跑步、游泳、煮咖啡、推演物理公式等日常之外，他将更多时间投入产品体验与用户反馈。"我要成为 搜狐产品最深度的使用者。"张朝阳坦言，自己非软件工程师出身，创业初期过于聚焦营销而疏于产 品，这是过去27年最大的遗憾。 如今，他每周在搜狐视频进行四场英语直播，已坚持9年零4个月。办公室长桌上，写满英语课程手稿的 餐巾纸堆叠成山。这是他从创业初期保留的习惯，搜狐的命名与早期产品灵感均诞生于此。 张朝阳拒绝被年龄定义。直播中，他是扮演奥本海默讲解量子力学的网红老师；镜头外，他在搜狐视频 关注流中与90后、00后打破圈层壁垒，在团队头脑风暴中提出比年轻人更前卫的构想。 与记者长达一个多小时的交谈中，他回顾了MIT（美国麻省理工学院）求学的叛逆时光，感慨回国创业 经历的冰与火般的洗礼，也描摹了在名利场 ...

编者按： 2025 年，经济观察报以 " 我们的四分之一世纪 " 为年终特刊主题，旨在通过数十位时代亲历者的故事，共绘一幅属于这段岁月的集体记忆图谱。 2025年冬日的北京，凌晨四点，当整座城市还沉浸在深沉的梦乡时，搜狐媒体大厦顶层的灯光如期亮起，张朝阳总会准时出现在办公室。这种近乎苦行僧式 的自律，已成为他"重塑"后深入骨髓的习惯。 跑步、游泳、煮咖啡、推演物理公式等日常之外，他将更多时间投入产品体验与用户反馈。"我要成为搜狐产品最深度的使用者。"张朝阳坦言，自己非软件 工程师出身，创业初期过于聚焦营销而疏于产品，这是过去27年最大的遗憾。 如今，他每周在搜狐视频进行四场英语直播，已坚持9年零4个月。办公室长桌上，写满英语课程手稿的餐巾纸堆叠成山。这是他从创业初期保留的习惯，搜 狐的命名与早期产品灵感均诞生于此。 张朝阳拒绝被年龄定义。直播中，他是扮演奥本海默讲解量子力学的网红老师；镜头外，他在搜狐视频关注流中与90后、00后打破圈层壁垒，在团队头脑风 暴中提出比年轻人更前卫的构想。 与记者长达一个多小时的交谈中，他回顾了MIT（美国麻省理工学院）求学的叛逆时光，感慨回国创业经历的冰与火般的洗礼，也描摹了在 ...

Core Insights - The World Internet Conference in Wuzhen highlighted AI as a core topic, with Zhang Chaoyang emphasizing that AI is fundamentally reshaping the paradigm of information retrieval [1][5] Group 1: AI and Information Retrieval - Zhang Chaoyang described traditional search engines as providing "houses" of articles, while AI offers "bricks" that can be combined to generate precise answers [1] - AI has shown remarkable accuracy in solving many physics problems, enhancing learning efficiency, and compensating for the limitations of human cognitive capacity [1][2] Group 2: AI's Role in Scientific Exploration - AI is seen as a significant driver of the new technological revolution and industrial transformation, with the potential to complement human inspiration in scientific exploration [2] - Zhang Chaoyang cautioned against over-reliance on AI, stressing the importance of independent thinking and memory for deep understanding [2] Group 3: Concerns about AI Content Generation - The rise of AI-generated content raises concerns about authenticity, particularly in areas like emotional communication and creative writing, where human touch is preferred [3][4] - Zhang Chaoyang noted the challenges posed by deepfake technology, including privacy violations and the need for legal frameworks to address these issues [4] Group 4: Global Information Sharing - The conference focused on building a community in cyberspace, with Zhang Chaoyang advocating for global consensus on shared information through the internet [5] - He highlighted China's internet landscape as a testing ground for global innovation and technology validation, particularly in AI [6] Group 5: Evolution of Internet and Content Consumption - The transition from PC to mobile internet and the evolution of content consumption methods—from text to video—illustrates significant changes in how information is accessed [6] - AI's role in content generation marks a new phase in the internet's evolution, transforming it into a foundational infrastructure for the digital age [6]

Group 1 - The core viewpoint is that AI is reshaping the way information is accessed, but humans should not abandon their ability to think independently [2][3] - Sohu will continue to focus on consumer internet, deepening its media and video social fields, and will restart its strategy for American dramas [2][4] - Zhang Chaoyang believes that China's internet advantage lies in its large user base, which provides a "testing ground" for global model innovation and technology validation [2] Group 2 - AI fundamentally changes the way information is organized compared to traditional search engines, with AI providing precise answers by combining basic units of information [3] - Zhang Chaoyang expresses caution regarding over-reliance on AI, warning that it may weaken human logical thinking abilities [3] - Sohu Video will emphasize a differentiated positioning of its "focus flow" product, which centers on "social distribution" rather than mere content consumption [3][4] Group 3 - Sohu plans to increase its procurement of American dramas and films, previously hindered by piracy issues, and will adopt a "long and short combination" strategy for content [4] - The company sees video self-media as a low-cost opportunity for entrepreneurs to gain influence, with a starting capital of around 100,000 yuan [4] - Success in the self-media field requires deep engagement in one's area of passion and achieving excellence, as competition is fierce [4]

Core Viewpoint - The founder and CEO of Sohu, Zhang Chaoyang, emphasizes the importance of personal understanding and derivation of formulas in the age of AI, suggesting that while AI can assist in repetitive calculations, true comprehension requires individual effort and thought [1][3]. Group 1 - Zhang Chaoyang advocates for the necessity of personal research and understanding of physics, stating that relying solely on AI for answers diminishes critical thinking [3]. - The approach of hands-on calculation in physics education is highlighted as essential for grasping the core principles and logic of the subject, rather than indulging in superficial understanding [3]. - Zhang notes that physics serves as a rich source of mathematical inspiration, citing historical examples such as Newton's invention of calculus and Einstein's use of differential geometry in formulating the theory of relativity [3]. Group 2 - The discussion includes the assertion that mastering certain mathematical concepts is beneficial for understanding physical systems, which often involve differentiation and integration [3].

Core Insights - The live broadcast "Zhang Chaoyang's Physics Class" celebrated its fourth anniversary, focusing on the theme of expressing differential geometry through vector calculus [1][3] - Zhang Chaoyang, the founder and CEO of Sohu, initiated the physics class out of personal interest and curiosity, leading to significant improvements in his theoretical physics knowledge [1][5] Group 1: Educational Approach - The course utilizes vector calculus as a starting point to make the abstract concepts of differential geometry more accessible to beginners [3][5] - Zhang emphasizes the importance of hands-on calculation in understanding physics, arguing that true comprehension comes from personal engagement with the material [5][6] Group 2: Course Impact and Reach - Since its inception, "Zhang Chaoyang's Physics Class" has aired 265 episodes, accumulating over 26,322.82 minutes of online content, covering topics from Einstein's famous equation E=mc² to cutting-edge theories in quantum field theory and string theory [5][6] - The program has expanded its influence beyond live broadcasts by publishing a series of popular science books and engaging with students at prestigious universities like Tsinghua [6][7] Group 3: Personal Development and Lifelong Learning - Zhang Chaoyang shares his personal journey of learning and teaching, suggesting that individuals can learn at any stage of life and should actively engage in the learning process [7]