%0 Journal Article %T An improved energy argument for the Hegselmann-Krause model %A Anders Martinsson %J Computer Science %D 2015 %I arXiv %X We show that the freezing time of the $d$-dimensional Hegselmann-Krause model is $O(n^4)$ where $n$ is the number of agents. This improves the best known upper bound whenever $d\geq 2$. %U http://arxiv.org/abs/1501.02183v1