The first type graduates from college and their learning stops for the most part. They say to themselves, "well, I studied for four years and got a job, now it's finally time to sit back and relax." So they put in their regular 9-5 and then come home and waste their lives away by watching TV shows and playing video games and going out and getting drunk on weekends. Essentially, they "settle" into a middle-class lifestyle, where they earn enough money to get by and may be save a little too. They may be content, but they are also always stressed about the prospect of losing their jobs, because at their level of skill and ambition, they are almost always employees, rather than employers. Eventually, that's exactly what happens as the work they do is automated and they find themselves unemployed with little savings and no other skill that they can contribute to the economy.
The second type has a perpetual hunger for knowledge. They see college as the "launch pad" for a lifetime of learning. So they graduate and get jobs, but on the side they continue to read, discuss, listen and apply. They hang out with smart and successful people who also read, discuss, listen and apply. They look for problems and opportunities, and figure out what they need to learn to be able to work on them. These are the Jennifer Dewalt types whose ambition and discipline set them up for a continuously upward trajectory. They are the ones who refuse to settle, and therefore end up as leaders in organizations that innovate and change humanity.
It's funny because over the years I have developed what I think to be a very reliable method for predicting someone's future success. The method involves asking the person what they do in their spare time. Based on their answer, I can picture where they will end up in five to ten years.