Penny for thoughts

I was out in uni just now to meet up a friend to discuss assignment and saw our lecturer to ask some questions. She commented that the people who build the Math & Stat building really waste a lot of space in that building. Why is that? Because there was nothing in the middle of the building from level 2 till level 6. There should be more space for students to sit down to talk or discuss or sitting space for the cafe. I always find it hard to find a space during lunch time because there are just too many people around.