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 empire banning the use of the printing press for 200 years." Perplexity AI and Databricks co-founder Andy Konwinski thinks the AI safety conversation has a problem: It's being used to concentrate power, not prevent harm. Earlier this week,…