This is a great question. The real answer is no, I don’t think so. The cool thing about science and engineering is that you get to work on a wide variety of projects. In the previous generation, it used to be normal for people to get a job out of college at some company, and then move up the ranks of that company for 20-30 years before you retire. These days, people typically switch companies or projects every 2-3 years, so things are always new and interesting.