Build a product and Launch it. Customers and the market will tell you whether they like it or not. Thats what is said in theory. But reality is far from it. While building a product is easy, it is oft the effort and perseverence after that, that defines the success of a product. It is said that if your idea is any good, you'll have to shove it down people's throats; markets adopting new products take time as well. If then, how do you know the difference between the market rejecting an offering, versus a slow uptake?
Take-Aways: How to Read a market? What is a Pivot? Repositioning your product? Tiding through the "silent" downtimes.