The difference is solely on the workflow. Using the rich comment approach you setup some state, fiddle around, change a function, invoke it again, store some ar

The difference is solely on the workflow. Using the rich comment approach you setup some state, fiddle around, change a function, invoke it again, store some arguments in a variable, change the function again, split it into two functions and so on. It is advised that once things stabilize you take your learnings and stuff them into a unit test for posterity.