> if they took a class at the same institution... doesn't that mean they got a repeat? Strange. yes > as they probably had interesting trajectories. Not eve

> if they took a class at the same institution... doesn't that mean they got a repeat? Strange. yes > as they probably had interesting trajectories. Not every physics professor went to a top school and published groundbreaking research. I do want to emphasize that taking Calc 3 again is one class out of dozens you need to graduate.