Mark Neumann - Sixth Post

So apparently from this reading I find out that the aliens called the Tralfamadorians have taken Billy to be an attraction at a zoo on their planet, even though he is trapped there like an animal he still does some time traveling which later on is revealed that Billy is "insane" so maybe he could just be thinking all of this up. From past books by Vonnegut I have gotten confused by his writing style he seems to like to switch events frequently in this book obviously being about time travel. Although I think this is the first book I have read by Vonnegut that he himself plays a subtle role in his own book as he is mentioned when Billy travels back in time to WWII and is being transported to Dresden in the same boxcar as Vonnegut. A question I have is, do you understand what is happening so far in the story? and What is the whole thing about the aliens capturing Billy? I will just have to keep reading to find out, but so far the story is getting pretty confusing.