At a technical level, the paper asks important questions and answers them in super interesting ways. The paper was written by Apple researchers including an intern, The Illusion of Thinking: Understanding the Strengths and Limitations of Reasoning Models via the Lens of Problem Complexity by Parshin Shojaee†, Iman Mirzadeh, Keivan Alizadeh, Maxwell Horton, Samy Bengio, Mehrdad Farajtabar († was an intern).