This video, which appears to depict a spectacular fireworks display in Japan with Mount Fuji in the background has been circulating via YouTube and social media since 2014.
Captions attached to some instances of the video suggest that the display shows why Japan’s fireworks are the best in the world.
Fireworks experts in Japan do indeed create fabulous fireworks displays.
However, this video is a digital simulation and does not depict real-life fireworks.
The video was created using a fireworks simulation software tool called FWsim. The software allows users to create their own fake fireworks “shows” complete with iconic background locations and synchronised audio.
Many commentators have pointed out that, if the display in the video was real, then there would likely be considerably more smoke in the air. Others have pointed out that, given the apparent distance of the fireworks from the camera, the sound of the explosions would not so closely synchronise with the light.
In fact, the Mt Fuji video simulation was uploaded to YouTube by a user called hiramu55bocaboca in November 2014. The user clearly identifies the video as a simulation and even includes the name “FWSim” in the video’s title. So, hiramu55bocaboca was not trying to fool users into believing that the display was real.
However, since it was first uploaded, the video has been published and shared by many other users. Some of these users may have themselves believed that the video was genuine. Others may have deliberately implied that the video was real as a means of gaining more views.
An example of a post with the video on Facebook.