You have almost convinced yourself that there might be a successful business in the idea of bringing senior citizens together in arcades to play various games on Wii (or something similar). You think about how people like your aunt and uncle have no interest in going to the gym but that senior citizens have shown interest in getting some mild exercise by using avatars, as Wii allows a player to do.

But you know that your idea, or your intuition, is not enough to convince a bank or other investor to sign on. You need to test your idea against the market objectively to see if it could really be a winner. There are three steps on your to-do list as you begin to pull a case together for a potential investor, suppliers, and employees:

1. Evaluate the TAM and the PM for your idea, using the city of Los Angeles as your geographic base. (You're already thinking ahead to expanding, but you know that you need to get well established first.)

2. Prove to your potential audiences that you understand the opportunity set within this idea is located.

3. Predict the window of opportunity - including an S-curve of adoption, an inflection point, and a plateau - for the Wii Arcade idea.

Use the provided template to pull your ideas together. You won't be presenting this information - yet! - to investors, but it may be the basis for conversations with potential partners - people you know who might have something to contribute to the business, if you launch it, and would be interested in joining you. So bring your best thinking to these tasks!