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”
Umbilicaria esculenta is a kind of mushroom. To pick this mushroom up, a picker must climb a high mountain and approach a dangerous cliff because this mushroom is growing up between rocks. Therefore, umbilicaria esculenta is more expensive than other kinds. One day, the TV show "Korean's Dinner Table" on KBS 1TV showed an episode about the mushroom picker and his old mother. "Don't sell this mushroom at a high price." said the mother, because this would be sold at a higher price, many pickers would die from over-picking even dangerous situations. We should deeply consider what is the mission of our businesses. - Joseph’s “just my thoughts”