I don't know Mark Bao personally, I live in Europe, but I really know a lot about he. He is not Lucky. He is so young, and have already created a some tech-company. 3words.me is only one of those, and was selled in few months. And nobody cares about how simple is an idea. The idea are worthless, the execution and the sociological effect are all, in a simple idea like this. Perfect execution, incredible effect on a lot of people. So, he is a good entrepreneur, and he will improve day by day.