‘Capital’ means ‘Principal.’ What does ‘Principal’ mean in business? The ultimate goal of any business is to create wealth. Wealth serves as the foundation for creating value, and that value must be generated solely through production. To produce, the cost must be invested first; the source of that cost is referred to as ‘Principal.’ In other words, the result of a transaction through trading is ‘revenues,’ and if costs and expenses are subtracted from sales, what remains is ‘profit.’ If costs and expenses exceed revenues, it results in a losing trade; if they are lower, it results in a profitable trade. Therefore, principal serves as the benchmark for profitability; in other words, it is referred to as capital. Whether a business is good or bad is determined by its profitability. If the principal is insufficient, borrowing capital becomes necessary, which is termed “debt.” Just as the number of principals capable of producing tankers differs from those that can create bicycles, the si...
For the security of the Internet service, we have been asked by the Internet service companies to set the password combined by more than 8 or 10 "uppercase letter+lowercase letter+number+special character". But it was obviously of no use. This security guideline was recommended by Bill Burr who worked at NIST in the USA, he suggested this way in his report. Furthermore, the user was required to change the initial password set regularly. Despite this measure, the best way of security to protect users' accounts was the notification of the alarm for attempted hacking when the hacker tried. We have only tried to change the keys despite the simple method meanwhile. Today, the world has begun to comprehend that the security problem is not encryption or confidentiality, but simply cyber-dominion control and communication. - Joseph's "just my thoughts"