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”
Only humans are the sole creatures on Earth that cook. The starting point of all cooking is the use of fire. Why do humans use fire? The nutrient absorption rate of raw potatoes is 51%, while boiled potatoes have a rate of 95%. Beef-specific proteins are 4 times more digestible when heated. Good digestion allows for greater energy extraction. Apes chew their food for 6 to 8 hours a day, but humans chew for less than an hour. As a result, the human intestines are only two-thirds shorter than those of apes. In contrast, the human brain is larger. The human brain is the most efficient organ for energy in the body. In fact, species of apes with larger brains have smaller intestines, while those with larger intestines possess smaller brains. This is referred to as the “exchange relationship between the brain and the intestine.” Eating boiled foods indicates cooking. This single factor decisively distinguishes humans. Don’t underestimate the significance of cooking. - Joseph’s “just my thoug...