Leader: In the book ‘Extreme Ownership: How U.S. Navy SEALs Lead and Win,’ written by Jocko Willink, there is a training story where seven Navy SEAL trainees form a team and carry a rubber boat weighing over 100 kg on their heads. Usually, one team would finish first and another last, but the team members stayed the same, and only the leaders were swapped. As a result, the team that finished last moved to first place, and the team that was first became second. What changed was that only the leaders were replaced; the rest of the team remained the same. It’s important to note that, although a leader’s ability greatly influences success, the key point is that the team that was initially first was moved to second place, not last, even though the leader from the last team took over the first team. This is because, under the previous leader, team members developed a winning habit, which persisted even when the leader changed. The most crucial element in an organization is the leader itself....
When investing in a market where asset trading is ongoing, persistent, and prices are constantly fluctuating, the most important factor is the perception and attitude toward “time.” Here, time refers to a defined “period,” a concept that encompasses the “past,” “present,” and “future.” Knowing the future can make us wealthy. All we know is the “past,” but in reality, even the past is often not fully understood. That is, we must admit we lack complete knowledge about the past, present, or future. In this state, we must conduct business and invest. The attitude toward business and investing is to focus on judging the “trend” by applying the concepts of differential and integral calculus simultaneously. Differential weather (e.g., morning and afternoon of a day) is easy to predict, but long-term future weather cannot be forecasted even by supercomputers . However, by accumulating knowledge of the past and analyzing it integrally, it is possible to predict the trend of the distant futur...