  Accompanied by the development of digital media, the threat of information
cocoon has become a significant issue. However, little is known about the
measure of information cocoon as a cultural space and its relationship with
social class. This study addresses this problem by constructing the cultural
space with word embedding models and random shuffling methods among three
large-scale digital media use datasets. In the light of field theory of
cultural production, we investigate the information cocoon effect on different
social classes among 979 computer users, 100,000 smartphone users, and 159,373
mobile reading application users. Our analysis reveals that information cocoons
widely exist in the daily use of digital media. Moreover, people of lower
social class have a higher probability of getting stuck in the information
cocoon filled with the entertainment content. In contrast, the people of higher
social class have more capability to stride over the constraints of the
information cocoon. The results suggest that the disadvantages for vulnerable
groups in acquiring knowledge may further widen social inequality.
