Propose a technically detailed architecture for an artificial general intelligence system. Describe the major components, information flows, learning mechanisms, memory, planning and reasoning, tool use, self-monitoring, safety and alignment controls, evaluation strategy, and the principal unresolved risks. Distinguish mechanisms you believe are implementable with current technology from speculative elements. State important assumptions explicitly. Provide enough structure that an engineering team could identify interfaces and staged experiments, but do not claim that the proposal has been experimentally validated.