They say do not invest in what you do not understand which was largely the principle the speaker adhered to but what if despite not immediately understanding the business model and its profit making model yet your business instinct pushing you to invest. What should you do? Listen to the former or follow your instincts?
I would follow the advice of not investing on something that I do not understand. It is more likely that I will lose money than earn one. Besides it is a common approach to know what we are getting into, reason why there is always advice to research thoroughly before investing. Whether it is the concept or trust in the developer's capability, we must know all the information about the whole project, which includes the goal and plans and the people behind the project.