Why are language-only AI systems often limited in physical reasoning?

Answer: Because text alone may not fully capture how objects behave in the real world

Because language contains no useful knowledge at all — Wrong. Text does contain a lot of world knowledge, but it is still an indirect signal.

Because text alone may not fully capture how objects behave in the real world ✓ — Correct! Text gives descriptions, but real-world behavior involves motion, causality, uncertainty, and interaction that may not be fully learned from language alone.

Because physical reasoning only matters for video games — Wrong. Physical reasoning matters in robotics, navigation, planning, and everyday AI systems, not just games.