LLM are not the path to go forward to simulate a person, this is a fact. By design they cannot reason, it's not a matter of advancement, it's literally how they work as a principle. It's a statistical trick to generate random texts that look like thought out phrases, no reasoning involved.

If someone tells you they might be the way forward to simulate a human, they are scamming you. No one who actually knows how they work says that unless they are a CEO of a trillion dollar company selling AI.