The ideal number is the smallest number you can live with. If ten thousand people like my work enough to interact with it and share it, not only do i feel seein i can make a commercial success but 99% of the people on earth never need to hear of me. What we are doing is selling something peculiar and idiosyncratic and specific to just a few people. It's not about how many people. The social media folks want you to think that, cause they're in the business of making you feel uncomfortable coming back and boosting. And the boost button is your enemy.