When we write, we hopefully have a point we want to make. Brian has called on us to view ourselves as story tellers when writing manuscripts, embracing
the art of story-telling that knows where it is going and does it crisply so that it sucks us in and carries us along with just the right amount of time spent on details of character and setting. Where the characters (questions), the plot (story arc), the setting, the theme (the one sentence take home message) all work together to make a cohesive whole that is greater than the sum of the parts
In doing so, Brian says:
Every word, every sentence, every paragraph, every section of the paper should be working together, like a well-synchronized team of rowers all pulling towards one common goal. The introduction should introduce the questions in a way that gives them emotional pull and leaves us desperate to know the answer. The methods and results should be a page-turning path towards the answer. And the discussion should be your chance to remind the reader of the story arc you have taken them on and draw sweeping conclusions from it. Any freeloading sentence or paragraph that pulls in a different direction should be mercilessly jettisoned (or at least pushed to supplemental material).
In this post, I am going to disagree with Brian’s last point (gasp! blogging drama!), but, in doing so, I am motivated by the same goal. When trying to make a convincing argument, it can help to address the most obvious concern or counterargument. As you are leading the reader towards your exciting, sweeping conclusion, you don’t want some part of their brain thinking “Well, I guess they are unaware of this thing that sure seems like a problem for their argument.” If it’s something that a reasonably well-informed reader might be wondering about or distracted by, you should consider directly addressing it in the discussion. (This is also important in terms of not over-selling your results.)