The most important rule in investing is not to lose your initial capital. Making money comes later. If you lose 50% of your principal, the loss rate is 50%, but to recover that principal, you need a 100% return. This is because the baseline of your return—the principal—has already been halved. Many people tend to think that if they’ve lost 50%, they only need a 50% return to break even. However, this is a misunderstanding of the starting point. In investing, the baseline is always the original principal. The principal after a loss is no longer the same; it’s already in the past. - Joseph’s “just my thoughts”
Architecture has developed in response to the epidemic. The city was designed to mitigate the risk of outbreaks. However, its high population density renders it susceptible to epidemics. A potential solution to this issue involves the construction of a water supply and sewage system, which safeguards individuals from waterborne infectious diseases (e.g., cholera) by effectively separating and burying water and sewage underground. Nonetheless, the advent of vaccines has facilitated the existence of megacities with populations exceeding 10 million people. Indeed, microorganisms predominantly populate the Earth. - Joseph’s “just my thoughts”