LLMs Fail Long-Horizon Tasks Due to 'Cognitive Inertia', RL Can Fix

burny_tech · x · 2026-08-17

The tweet argues that LLMs fail at long-horizon tasks not because of context limits but due to 'cognitive inertia'—carrying over the reasoning format of step N to step N+1 when a different skill is needed. The author suggests fixing this with reinforcement learning and provides a thread.

Original post →

More from Research

Research channel →