Many researchers, scholars, and professors express feelings of being stuck in their chosen fields, often contemplating whether it's too late to switch or regretting their initial choices. This sentiment is echoed in the industry, where individuals may also feel dissatisfied with their career paths. A common theme is the realization that a single lifetime is insufficient to explore all interests, particularly in complex fields like mathematics. Some individuals have successfully transitioned to new careers through self-study, despite initial regrets about their university choices. The desire for immortality or reincarnation as a means to explore more knowledge is also mentioned, highlighting a longing for greater opportunities to learn and grow.