We done a practice of crowdsourcing that week to ask 10 people about the number of sweets in a box they think without opening it. Eudora (Yiying Li) was my teammate. I think it was a very interesting and helpful practice to understand what crowdsourcing is. Everyone we interviewed had their different ideas and answers, but it was magical that the average number was much closed to the correct answers. However, I think the most important thing is that along with the rise of the strength of grassroots, using crowdsourcing is getting significant.