At 08:48 PM 10/9/2003 -0400, Michael Kleber wrote:

if Weeks is right, then you could go in a straight line for 74 billion light-years and get back to where you started, just rotated by 2pi/5.

... but after 74 billion years (minimum) you'd hardly recognize the place! In fact, doesn't it become a bit difficult even to define what is meant by "where you started"?