作者 | 叶二 编辑 | 魏晓 这一次，张朝阳带着我们"上了外太空"。 近四个小时的跨年演讲中，张朝阳带着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，用一个个数理公式，去探访太阳系熟悉而神秘的 世界。 这已经是张朝阳连续第三年开启如此硬核知识的跨年演讲了，从2024年"时间解码"到2025年的"量子力学"，再到此次的"太阳系"，张朝阳的物理视角也在 一步步延伸拓宽，形成了一条从基础物理到前沿领域、从微观世界到宏观宇宙的清晰探索脉络。 亦在这一过程中，一些神秘的概念、高深的物理知识，在大众层面有了更广泛的普及。 过去四年来，基于搜狐视频知识直播的主方向，张朝阳亲身下场以物理网红的身份持续输出硬核专业内容，张朝阳的跨年演讲只是其中之一。 这场长期主义的科普实践，不仅塑造了《张朝阳的物理课》的硬核科普IP，更成为搜狐视频知识直播业务的核心助推力，带动了平台关注流知识直播板块 的布局，并形成了多元化的知识内容生态。 于整体直播行业来说，张朝阳以及搜狐视频的长期深耕，更是为市场注入了一股饱满生机的差异化内容场，很优质，很稀缺。 张朝阳曾说过，"当你决定做一件事的时候，最重要的要坚持，长期坚持到一定程度，量 ...

Core Viewpoint - The article emphasizes the significance of Zhang Chaoyang as a representative of Sohu's brand image, showcasing his commitment to "long-termism" and the company's focus on sustainable growth through various challenges and activities [1][11]. Group 1: Zhang Chaoyang's Challenges and Achievements - Zhang Chaoyang completed a 8.69-kilometer swim across the Nan'ao Island-Paofeng Bay in 5 hours and 18 minutes, highlighting his dedication and the value of setting meaningful goals [3][4]. - This swim served as a promotional event for the upcoming 2025 Sohu Video Broadcaster Conference and the 15th National Games, demonstrating how personal challenges can align with business objectives [4][10]. - Zhang's previous swimming challenge in 2022 was shorter at 4.15 kilometers and took 2 hours and 36 minutes, indicating his progression in endurance and training [5]. Group 2: Training and Methodology - Zhang employs a scientific approach to training, alternating between running and swimming to enhance cardiovascular fitness and water endurance [6]. - He adapts his techniques based on physical principles, such as swimming without a wetsuit to reduce drag and adjusting his swimming angle to counteract ocean currents [6][9]. - His experiences in various sports, including marathons and mountain climbing, contribute to his innovative methods in promoting Sohu's business [7][11]. Group 3: Business Implications - Zhang's athletic endeavors are strategically linked to Sohu's marketing efforts, such as promoting the Sohu News Marathon and enhancing the visibility of Sohu Video's live streaming capabilities [7][10]. - The upcoming Sohu Video Broadcaster Conference aims to gather diverse content creators, reflecting Sohu's commitment to community engagement and innovative content delivery [10]. - Sohu's focus on "long-termism" and steady innovation is evident in its approach to user engagement and capital market positioning, as demonstrated by the success of its "关注流" platform [10][11].