Challenge set by XKCD’s Up Goer Five:
At the big boys’ school I worked on making really, really tiny things that can help many people not be sick. To do that we spent days reading books and learning how to add smaller bits together, one by one, to make the whole tiny thing. All the things around us are made of these tiny bits held together in different ways. But because these bits can not be held in hands, or seen by eyes, we had to do work with them in ways that would allow us to understand if we were doing it right.
The tiny thing I was making was hard to make. So I had two other people working on it with me. We talked and helped each other to come up with a way to make the tiny thing after three years of trying very hard. We made most of it, but some bits remain on which one person is still working.
After my work was done I wrote a book on it. Now the big boys have read the book and they will ask me hard questions. If I answer them then they will give me a note which will help me go out in the world and get a job that will pay me money and let me do what I want to do.