Question: Joshua Sherman, who lives near Vancouver, Canada, is preparing to pitch an idea for a social gaming website to a group of angel investors. The site has some new and novel aspects to it. He made a practice presentation in front of his advisory board, and one question that an adviser urged him to prepare for is "If you're successful, " what's to prevent Facebook from launching a similar product?Joshua frowned, and said he thinks it's unlikely he'll be asked that question. What do you think? If you were Joshua, how would you prepare to answer that question?