Ludwig didn't care for this because he had more to think about from what he heard them say.
They talked about many things and he needed process. So instead of cultivating and focusing on other things, he had lost his focus into these thoughts again and again. Finally, he knew he wasn't able to stay focused and decided to cultivate his body instead of his mind.
This was an easy task, easier than anything else to be honest. He only had to do exercises that were normal in his past life. One would think that this should be inefficient, but after all, modern science is basically on the level of a mystique awakener, when u look at the specific topics then medicine would be at least one stage higher, maybe even more.
