Why it worked
The video uses a relatable, humorous premise (an annoying pet) combined with high-end tech 'flex' content, creating a satisfying and visually engaging cleaning montage that keeps viewers watching to see what gets dusted next.
Summary
A person uses a dog's tail as a duster to clean various high-end computer components, including an RTX 4090 and a custom PC case. The video humorously suggests the dog has found a new purpose as a cleaning tool.