The point is that there are not topics you intend to be an expert in, so you can cover more topics. you can take a rigorous study for topics that you are passi

The point is that there are not topics you intend to be an expert in, so you can cover more topics. you can take a rigorous study for topics that you are passionate about, but there can only be so many of those. Otherwise, the alternative is simply to not know anything, even a little bit, about said topic. Now, if you know that you only have interest in topics you are very passionate about obviously you don't see this as a problem.