The universe we live in is empty mainly in terms of matter density. The protons and neutrons that constitute matter are called baryons, and approximately one proton exists in a space of 19.8 square meters. However, when the universe expands rapidly, the cosmic background radiation, known as a photon, is produced, resulting in two billion more photons in a grain of light. Since this light is a microwave, which has low energy and a long wavelength, it cannot be seen by the human eye. Therefore, humans, who only perceive visible light, consider the universe and the night sky to be dark. If there were aliens capable of seeing microwaves, the universe would be shining very brightly. The truth is that nothing has changed, but if the standards shift, it’s an entirely different story. - Joseph’s “just my thoughts”
Originally, the Louis Vuitton suitcase had no wheels. The ancient journey was the exclusive possession of the nobility and the rich. It was hard to go alone because there was a lot of luggage to travel with, so it was usually possible for people who could handle servants. Therefore, there was no need for wheels in the bag then. Popularized travel is a product of the late 20th century. When we look at the wheel of a suitcase, we have to be able to look at history and class together. And we should be able to see the essence of luxury goods. - Joseph’s “just my thoughts”