Many remarkable scientists of human history were physicists, discovering theories and equations that remain relevant and accurate despite decades and centuries of advancement. Despite this, due to misunderstandings, lack of research, improper collection of data, or sometimes merely because times have changed, some theories fall apart under the observation of modern eyes. With this cycle, new ideas are developed, simulated, and calculated by a new generation of brilliance. But how does this occur, exactly? What steps do physicists take? Are there any rules? When measurements from nature differ from predictions or when mathematical patterns show anomalies, physicists start investigating the phenomena, marking the start of a new discovery. At this stage, many scientists often use mental simulations and hypothetical experiments to conceptualize their ideas and explanations. This helps them challenge current concepts and logic by creating a completely new scenario, without the need to design and execute physical experiments. Once ideas are generally under development, physicists compare them with mathematical equations from classical physics such as conservation of energy, or the speed of light. If their conceptual understanding does not align with the very building blocks of physics, then it is time for them to reevaluate their ideas. When the math is tweaked and the concepts become explainable through mathematics, experiments or actual simulations begin. Theories are generally regarded as mere ideas until there is empirical evidence of it holding up in nature, producing genuine results that don’t contradict with its core concept.