The straight path. It is an idea with immense psychological appeal to us. Every valley, Isaiah promises, shall be exalted, and every mountain and hill laid low (Isaiah 40:4). As communicators, we naturally want to lay out a straight path for our readers. But the truth is, we lack the power to make the crooked straight and the rough places plain.
The crooked path and the paradox of sensemaking
The reader walks a crooked path through a forest of information.
Simon Carey [CC-BY-SA-2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons
In his landmark book, The Nurnberg Funnel
, John Carroll described what he called the paradox of sensemaking, which can be roughly summed up as saying that learners cannot make sense of the learning materials because they don’t correspond to their current mental model, which can only really be changed by experience. No documentation can ever work perfectly, therefore, because it can only make perfect sense to someone who already understands what it is saying.