Show HN: What if the speed of light was 5 km/h?

Dmitry Brant has released an interactive web simulation titled 'Rivendell' that explores the visual and physical consequences of a universe where the speed of light is reduced to a mere 5 km/h. By applying the principles of special relativity, the project demonstrates how phenomena such as length contraction, time dilation, and the Doppler effect would manifest in everyday life. Users can navigate a virtual environment to observe how objects distort and colors shift as they approach this extremely low speed limit. The simulation serves as an educational tool, making complex relativistic concepts intuitive and accessible to a general audience. By visualizing these abstract physics principles, the project highlights the profound impact that the constant speed of light has on our perception of reality, providing a unique perspective on how the universe would behave under drastically different physical constraints.