This is a great point. But the rules itself kind of works against this. Google stipulates that we can choose winners only amongst the top 10 students. Those will be the ones with most number of task not necessarily challenging ones. So if a student spends his time working on challenging tasks and does not make top 10 even if he did excellent work, we can’t accept him. I remember someone raised this point on the mailing list last year and the solution that was proposed is that we should ask such students to do more easy tasks so they can make the top 10. That is not a solution to me. That will make gci less fun as students may not work on what they love because they want to make top 10.