Imagine you have the first-ever product that can do [insert amazing thing here that is not currently possible]. You haven't gone to market yet, but the technology is complete; it works, and you can prove it. You decide that you want to move quickly, before someone else figures out how to do it. VCs are open to taking calls with you. How do you raise capital? Where does the valuation come from? How do you know whether to value it at 100k, 1m, 10m, or 100m?