At that time, Su Shi was demoted in various ways, but he was still very optimistic and wrote poems or something. What's more, he is also a very powerful gourmet, and his life is relatively leisure, so he studies and makes all kinds of delicious food. One day, he created this method, which was super delicious. Gradually, this method was widely circulated. In order to commemorate this dish and Su Shi, people call it "Dongpo Meat". This is meat in itself, and then Su Shi's word is Dongpo. Together, it is the name.
As for later calling it braised pork, it is because of its practice. This kind of meat can also be cooked at home. Thicken it with sauce and put it on a pot until it is cooked and tasty. Also, because the color of meat becomes the color of sauce, it is called "braise in soy sauce". Both names are ok, referring to the same thing. When you see this meat, you will think of the great poet Su Shi, and feel that his innovative ideas have brought such delicious food to future generations, which is super awesome.