Ha ha! I've tried to answer this question a few times tonight, but alas I find that I am not able to do so :-) It's a good question and I think the answer is

Ha ha! I've tried to answer this question a few times tonight, but alas I find that I am not able to do so :-) It's a good question and I think the answer is much more deep than it appears. Maybe one day I'll be able to answer it.