Congratulations to my brilliant co-founder Philipp Moritz (@pcmoritz) and the legendary John Schulman, Sergey Levine, Pieter Abbeel, and Michael Jordan on their Test-of-Time Honorable Mention at ICML 2025 today! For creating TRPO. This was done during the previous wave of excitement around reinforcement learning (Atari, Mujoco, AlphaGo, etc). Now RL is back thanks to LLMs and reasoning models and the work is more impactful than ever before! The field has to a large degree standardized on variants of TRPO. @pcmoritz @johnschulman2, @svlevine, @pabbeel