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?
In the past, I failed many times on my investing journey and that's because I follow my instinct that this is the right thing to do, I am closer to succeed if I chose this etc. that all comes in my mind. But only time can tell if you made the right decision, obviously in my case it turned out bad because i'm too confident. So for me, it would b better to understand first the investment before making a decision to invest.
There might be people who gain fortune by following their instinct. But not all are lucky to have such fate. It's either you will got lucky or regret not taking time to understand everything before taking a risk.