"The links and connections are certainly visible online. Among those watching the rise of Vox in the Spanish elections was a Madrid-based company called Alto Data Analytics. Alto, which specializes in applying artificial intelligence to the analysis of public data, ..., with the goal of identifying disinformation campaigns seeking to distort digital conversations. The maps showed three outlying, polarized conversations — “echo chambers,” whose members are mostly talking and listening only to one another: the Catalan secessionist conversation, the far-left conversation, and the Vox conversation."