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”
Google founder Sergey Brin, one day asked a great question. “What will happen if we give this service for free?” The result was, as we know well, “MONOPOLY”. Google gives employees 100,000 meals a day for free. This is because Google found that providing free meals is more profitable for the company. Initially, a payment system was introduced in the cafeteria. Soon, however, Google changed its mind when it saw the people waiting in line. Google learned the “opportunity cost”. Google's technology is excellent, but they realize it is not about making money. Fate changed when they discovered that the Business Model for that technology made money. - Joseph’s “just my thoughts”