To determine the top 20 most valuable fintechs in the world, and who the major investors are for each. Additionally, to learn details about these investors including the key principals who do the investing, the size of their funds, investment philosophy, any investments in the top 20 fintechs in addition to the initial one found, the characteristics of the top 10 investments in unicorn and non-unicorns, any interactions with management of invested companies (i.e. other than investing money, what else do they do with the companies they invest in)