In brief - Andy Konwinski, who cofounded Databricks and Perplexity AI, argued this week that concentrating AI power is a safety risk in itself. - The essay followed Open Frontier, a working meeting of roughly 100 researchers in San Francisco on June 30. - Turing Award winner Yann LeCun replied directly on X, comparing today's closed-lab AI moment to "medieval obscurantism akin to the Ottoman empir...