Reflection on the Short Video’s Algorithm-based Communication in the Age of Post-truth

Combining the characteristics of post-truth era with  short video’s form, this article has made a new understanding of Walter Lippmann’s “pseudo-environment”. This author reconsiders the short video based on algorithm communication. In order to reduce the political risk of the algorithm, it is necessary to give full play to the advantages of the algorithm, improve the recommendation mechanism of the recommendation algorithm and take the algorithm as the fourth gatekeeper to check the information, according to the operation mechanism from the platform’ s  point of view.