There is no "theory" of tomorrow's weather. We understand the math of every single individual equation of an LLM (for example), just like we understand every si

There is no "theory" of tomorrow's weather. We understand the math of every single individual equation of an LLM (for example), just like we understand every single equation in the physics simulation. It's the entirety of the system that we don't understand (and hence can't predict) in our heads. From a biology perspective - we have a good understanding of the carbon atom and how forces influence it. We really don't know much about a cell.