The smallest viable audience is the smallest possible market you can serve while making enough profit that you’re happy and able to grow. When you focus on a smaller market, you can make sure you serve them well. You can make a bigger impact on their lives, allowing you to focus on the customers’ needs first. When you start with a product and try to make people fall in love with it, you will have a difficult time getting your business off the ground. Find the peoples’ needs first and find a way to meet them. We like the saying “scratch your own itch.”