In China, one social media trend hangs on the idea that a life in the US is always one step from disaster, while another in the US has gen Z revelling in Chinese lifestyle hacks

Across two online worlds that are normally splintered, over the last few months there has been a mirroring of sorts. On TikTok and Instagram, young people are diving into the joys of Chinese culture – from drinking hot water to playing mahjong – all under the banner of “Chinamaxxing”. On the Chinese internet, however, the US is losing its decades-long grip on soft power, and is instead being replaced by a darker trend: the kill line.

The kill line is a dangerous place to be. In gaming, the term refers to the point at which a player’s strength is so depleted that one more blow could lead to total wipeout. In China, the term refers to the risks that come with daily life in the US.