I saw this on Zhihu a long time ago. Whether you call it a joke or a tease, I'll try to retell it.

       Three people go to apply for a job at a chemical industry-related company: one is a major in analytical chemistry, one in organic chemistry, and one in computational chemistry.

       The first one interviewed was the analytical chemist. The interviewer asked, "What is produced when hydrogen ions and hydroxide ions are put together?" After some thought, the analytical chemist gave the answer: "They form water, H2O." The interviewer said, "Think about it again, what exactly can be produced?" The analytical chemist hesitated for a moment and said, "It just produces water, H2O." The interviewer finally said, "You can go back now."

       The second one interviewed was the organic chemist. The interviewer asked, "What is produced when hydrogen ions and hydroxide ions are put together?" The organic chemist also gave the answer after some thought: "They form water, H2O." The interviewer said, "Think about it again, what exactly can be produced?" The organic chemist thought some more and said with confusion, "Maybe there are some trace unknown impurities?" The interviewer finally said, "You can go back now."

       The third one interviewed was the computational chemist. The interviewer asked, "What is produced when hydrogen ions and hydroxide ions are put together?" The computational chemist gave the same answer after some thought: "They form water, H2O." The interviewer said, "Think about it again, what exactly can be produced?" The computational chemist glanced at the interviewer wickedly, walked to the window and drew the curtains without a sound, turned back to look at the tightly closed door, and whispered, "What would you like it to produce?"

I remember someone in the comments saying: "A veteran computational chemist, skilled at Photoshop and creating fitted curves."

What have we gained since computer tools entered the traditional scientific research industry? The first thing we gained was a sense of novelty and excitement; it opened up a path that had never been imagined before. Fresh blood was injected into the researchers' brains, and countless inspirations and possibilities burst forth in an instant. Many problems that were once difficult to solve, or problems that had to be bypassed, were met with tools to break through and solve them. Subsequently, a large number of scientific research achievements with brand-new, brilliant ideas appeared—some retrospective, some subversive, others pioneering new approaches. These achievements, cutting through thorns and thistles at the forefront, became lighthouses in the vast ocean of knowledge and the unknown, followed by countless successors. In the end, scientific research results that did not involve this new direction were viewed as too old-fashioned, traditional, and backward. Achievements that could have been graded A before now only get a C. Many people innovate for the sake of innovation, awkwardly and crudely utilizing these new technologies, and others have even organized standardized routines, or even exploited information gaps to rake in profits. They tell stories that are full of holes and that even they themselves don't understand, telling them to others who also don't understand. They call it: the livelihood of a million barge men.