[Dimensio]

In conclusion, the distinction is in the complexity of the idea, and certainly not a measure of uncertainty as is sometimes misconstrued by laypeople.

I do not believe that complexity is a defining trait. Rather, it is the type of statement. Laws can be described as definitions, while theories are explanation. As an example, the "law of gravity" defined the force known as gravity according to a mathematical equation. The "theory of gravity" -- more commonly known as "relativity theory" -- attempts to explain the cause of the force known as gravity.