The Great Gatsby Chapter 6

This chapter seems kind of pointless. I don't necessarily like it and don't necessarily dislike it either. It is just such a weird chapter. I like how it tells you a little bit about Gatsby's past. I would like to know, who is this Dan Cody guy? Also, where did Gatsby learn this amazing smile from? I would really like to know. Another thing, did Gatsby go with Tom and the other two people he was riding with to that one lady's house for dinner? This chapter seems so inconclusive. What influenced Gatsby to change his name? This chapter also only tells us where he gets a small portion of his money. This money was probably used by Gatsby to send himself over seas to relax and explore other countries. Then, when the World War started Gatsby was probably staying in a country that could care less about getting involved in the Eastern Hemisphere. After hanging out in some secluded little country, he probably receives some mail from home or the government telling him that he has to serve in the army. Either that or Gatsby comes home and is drafted. He serves and then stays to go to college. Then where does Gatsby get his money? Does he get it from other people like Dan Cody? I bet that if he would have received all of Dan Cody's money, that he would not be involved in whatever little thing he is in. I would really like to find out how he has all that money now.