Here’s a scenario which would be common in my day to day tasks in work. Trying to make an interface “work”, and getting a colleague to give it their first impression. A 1 minute conversion/demo can make something you thought was obvious seem the polar opposite.
From Watching them struggle:
You’ve probably watched somebody who is not technically savvy trying to operate an interface new to them, likely with little success. Maybe that interface was yours. You’ve spent countless hours cutting that thing down to the basics, refining the copy and making everything crystal clear, and yet, you watch with bewilderment as the user before you struggles and stumbles across the screen, doing everything possible to go in circles around the interface element they actually need, which to you seems blindingly obvious.
When writing, designing, creating, producing … something, it is important that someone else can understand it, interact with it and benefit from it. Feedback counts, and early feedback counts double. If you can’t get that early feedback, at least try step back and see what you’ve done from another angle.