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”
Knowing and doing are two very different things. Zhuge Liang, an incomparable genius who was a Chinese prime minister of the Three Kingdoms, knew the deep secret of nature. However, he suffered a great defeat in the most important battle because he wrongly appointed Ma Su as his subordinate general, even though he knew him well and had received a warning about his appointment from the late king. Personnel management is the most difficult thing in the world, and to manage it well is the key to success. - Joseph's "just my thoughts"