While i agree her tournament performance wasn't that great this time around, i do think she should be invited again. There are a lot of young girls watching this tournament. The reason there are so few women players is that they have no role models in chess. We have Judit Polgar, that's it. One day, there will be a woman challenging for the world title, it is inevitable. Polgar showed that there is no genetic predisposition that makes men stronger, it is absolutely possible for a woman to compete at the highest levels. Ok Hou Yifan might not be that break through player, but at this present moment she is the best female player by far. She is 2680 fide, that is well inside the top 100 in the world. Just because she had a disappointing tournament is not a reason to exclude her. I think it is very important that women players can see that there is a route to the top if they make the grade.