i like to play volleyball, doo art, and play piano. i like thai pop music and korean pop music. music is a lot more calm, acousticic-type of musu. while korean pop is lot more dance and more kind of upbeat. personally, in terms of my future job, future goals, i hope to either major in architecture or psychology, or both. but realistically what i really want to have in the future is happiness. i think the entire environmental problem, and the over-population problem is one of the biggest that we probably have to deal with pretty quickly. the garbage patches in the oceans are only getting bigger. there are not t many famouss solutions s that are hapappeng right now, so it's kind of woworrying to see those issues getttting bigger a and biggerd not seeing as much action as we hoped. host: estimates suggest that the population of africa could well double over the next 30 years, from 1.2 billion to 2.5 billion. rwanda already has more than 12 million inhabitants, making it one of the most densely populated countries on the continent. in this week's global ideas, our colleague, conny b