当视听媒介由大众媒体时代的横屏向新媒体时代的竖屏转轨，倍速播放功能也随之嵌入其中。文章以青年用户为研究对象，通过半结构式访谈法考察短视频倍速播放的作用机制与影响后果，以期打碎短视频倍速播放的外壳，洞悉隐匿其内核的结构性动因。研究发现，效率至上与时间稀缺的对冲、短视频平台赋权与控制的并存、影像过载与即刻消费的需求是青年用户对短视频倍速播放的主要推力。在此期间，线上倍速与线下竞速的互渗构成了当下青年群体全域时空的加速趋势，这种由“数字化生存”朝向“数字倍速化生存”的畸变引人忧思。

As the audiovisual medium shifts from the horizontal screen in the mass media era to the vertical screen in the new media era, the function of multiplying the speed of playback is embedded in it. This paper examines the mechanisms and consequences of speeding up short videos through semi-structured interviews with young users in order to break down the shell of speeding up short videos and to understand the structural motives hidden in its core. The study found that the hedge between efficiency and time scarcity, the coexistence of empowerment and control of short video platforms, and the demand for immediate consumption of image overload are the main drivers of short video doubling by young users. During this period, the interplay between online speeding and offline speeding constitutes the acceleration trend of the youth group in the whole space and time, and this distortion from “digital survival” to “digital speeding survival” is a cause for concern.