One of the key principles of money is ‘opportunity cost.’ It means that when I buy something, I have to give up something else in return. We think we buy because we need something, but we often forget that we could buy something else instead. We rarely consider ‘opportunity cost’ when making a purchase. We do not compare other values against our needs. Buying something means giving up something else, but we often don’t realize it. When we spend money, we should also consider the ‘opportunity cost’; yet, in reality, we aren’t trained to do so. By making a purchase, we bypass the value comparison that may not offer any additional benefits. Maybe it’s because we lack knowledge, or perhaps the idea isn’t appealing. - Joseph’s “just my thoughts”
Every day, I examine the world map. When I zoom in, the map reveals a world I have yet to discover. There are countless unknown places on this planet that I have not experienced. By observing the geography, countries, and attractions, I can learn about history and broaden my perspective on the world. Looking at the map prompts me to reconsider space, time, and culture. For instance, in the Bering Strait, Big Diomede Island belongs to Russia, while Little Diomede Island is part of the United States, and the distance between them is only 3.7 kilometers. The International Date Line passes between these two islands. Even if we were to cross the distance by ship, it would take about 9 minutes at a speed of 15 knots. However, after those 9 minutes, we would find ourselves a full 21 hours behind. This situation illustrates that time is more of a human agreement than a mere physical measurement. Ultimately, learning and personal development are fueled by continuous questioning and doubt. ...