This podcast episode explores OpenAI's latest AI model, CriticGPT, designed to identify errors in code generated by ChatGPT. Trained on a dataset with intentional bugs, CriticGPT outperforms human reviewers and provides preferred feedback in the majority of cases. The episode also discusses advancements in the field of robotics, such as the development of a humanoid robot with lab-grown human skin cells, and highlights sustainable practices in construction and space exploration.