If you abstract (i.e. zoom out / reduce the sampling resolution of) sensations enough, they become more and more like each other. If you do the opposite, their differences become more and more apparent.
To some people, every distant country looks the same... because they don't analyse the landscape and cultures. To some people, every apple or orange looks different... because they do analyse the contours and the shapes.
People who can zoom in and out at liberty, are generally going to find it harder to discover novel empirical experiences; they are then more likely to dwell on the differences between concepts. People who can't zoom in and out at liberty, are generally going to find it harder to see the similarities between empirical experiences in general; they are then more likely to dwell on the difference between empirical experiences.
In both cases, the mind likes novelty.