If you’re doing something truly new and different, don’t immediately seek out the largest addressable market. Look for a “hair on fire” use case, customers who need your product so badly that they almost literally have their hair on fire.
Those are the ones who will be willing working to work with you, help you test your product and iron out inevitable bugs and glitches. From there, you can scale up to more profitably opportunities.
To learn more, check out my blog post on Digital Tonto: The Hair On Fire Use Case