In their book "Made to Stick" Chip and Dan Heath make the following statement (slightly edited) in the Epilogue.
"[Problem solving] has two stages: the Answer stage and the Telling Others stage. In the Answer stage, you use your expertise to arrive at the [solution] you want to share. [...]
Here's the rub: The same factors that worked to your advantage in the Answer stage will backfire on you during the Telling Others stage"
After solving a problem, we know a lot about it. The problem is, the people who we are communicating the solution to, don't know nearly as much. This is where the "Curse of Knowledge" comes in. What we already know, we have to get across to others. The problem is that what we think is important may not matter unless you can get others to buy in to your solution. The book provides the recipe for SUCCESs.
www.madetostick.com is their website.