On page 93 of the March/April edition of Sky and Space is a thought provoking question and answer in the Astro-answer section. *How can the universe expand into nothing*is the question and one that usally pops up when friends and family ask how the astro stuff is going .Without understanding the theory i usally give the inflating ballon example but its a intriging subject and just wondering what other people think and whats your take on it