Why there's more to validation than just testing Usability
When we talk about building and validating products, we talk about a broad range of aspects to consider. Can we build it? Can people use it? Do people want it? The problem here is that testing a prototype in the lab only tells you one part of the story. And while it’s worth arguing that telling 50% of a story is better than not to start talking at all, you have to put it into the right context.