Footage of a YouTuber using a hot knife to cut through a block of polystyrene, and it is oddly satisfying to watch. <br /><br />The video, filmed in Wisconsin, USA on November 1, shows the knife splitting the polystyrene box into segments. <br /><br />The clip was uploaded to the YouTuber Channel Watch It Melt, which features videos of exactly what you would expect. <br /><br />The filmer later wrote online: "Many people have been saying that my videos help them relax, and reduce stress, similar to ASMR. <br /><br />"Others have been saying that they find them 'Oddly Satisfying' which seems to be a fast-growing genre of video."