Last year, Lu worked on an independent research project on fifteen of the world's most influential cities. He worked on it over several months. He had many technical difficulties: his computer breaking down, realizing that he had only downloaded the thumbnails of the hundreds of images he'd found for his presentation, and losing information several times. He continued working over the Christmas break and finally gave his presentation. It worked out nicely because grandma, aunts and uncle were visiting, so Lu had a good audience.