Why it worked
The video uses highly satisfying, visually stimulating 'oddly satisfying' ASMR-style visuals of melting plastic and molding, which keeps viewers engaged through the entire compilation.
Summary
A creator uses a wok over an open fire to melt various colored plastics and pour them into silicone molds to create household items like a cutting board, a bowl, a utensil holder, a comb, a tissue box, a soccer ball, a cat food bowl, and a lamp. The video is a compilation of these DIY-style molding processes.