AI Development & Application - Google DeepMind's Sima agent is trained in environments generated by Genie 3 [1] - Genie 3 responds to the actions taken by SIMA, creating an AI interaction within another AI's simulated world [1] - The system involves an AI playing within the "mind" of another AI [1] Technology & Innovation - Genie 3 is used to create virtual worlds for training AI agents [1] - Sima agent follows instructions within a world generated by Genie 3 [1]