User blog comment:Meta07/Facepalm/@comment-24308659-20120818074038/@comment-1785597-20121013223707

@Everyone:

1) The observable universe is about 13.7 billion light years. The universe itself may not be infinite, but it's so large that it might as well be considered infinite. The universe is certainly not 20 billion light years long.

2) As for the shape, it is currently unknown. For fact, it is not a dodecahedron. The most commonly accepted models of the universe is the sphere model, the hyperbolic model, and the two-dimensional flat model. The flat model is most likely, but again, it can't be proven.

I am getting this information from the top of my head, along with various articles. While this information is not proven, it is likely.

Wacky, you are sure about your facts? Scientists debate on this type of information for a living, but you, a stupid 13 year old with virtually no astronomical and cosmological knowledge, has this information proven for a fact? Wow, you must be the next Albert Einstein! Go claim your Nobel Prize!

Before you say the same about me, just note that while I don't mean to brag, I certainly know more about astronomy than you do.