Researchers have introduced FutureSim, a simulation framework designed to evaluate the adaptive capabilities of AI agents in dynamic environments by replaying real-world events in chronological order. This approach enables agents to forecast future events beyond their existing knowledge base while interacting with the simulation. The primary goal of FutureSim is to assess an agent's ability to adapt to new information and make predictions about future outcomes. By utilizing real-world event replays, FutureSim provides a more realistic and effective evaluation methodology for AI agents. The implications of this research extend beyond the realm of artificial intelligence, as state-aligned threat activity can have significant geopolitical consequences1. This matters to cybersecurity practitioners, as the ability to simulate and predict adaptive agent behavior can inform strategies for mitigating potential threats and improving overall system resilience.