Unusual Combination of Fun, Deep, and Creepy.

I admit, I'm tempted to write Alexiforously, with the use of thesaurus-enhanced vocabulary that does justice to the flexibility of the English language. Admit it... you were/are all tempted to do the same. Someone will, I hope, do so in their posting before this is through.
Overall... a very mood-spanning read. I wouldn't say a spectrum of moods, or a rainbow of moods, but rather a span of moods. That was fun. The ending, while doing a surprisingly good job of bringing conclusion, also lends a sense of hindsighted creepyness to all the other serious parts of the novel, which I otherwise enjoyed during the reading process. I feel as though I should be asking myself, "ok... so then what?" and yet I'm not. That's why the end is surpisingly conclusive.
What I probably enjoyed most during the read was the character development of the two "writers." One begins with the notion that Alex is all comedy, and that Jonathan is all seriousness, despite the sillyness of the novel what he is writing. But as things progress, the layers really peal off of Sasha-Stop-Spleening-Me. The book's Jonathan character seems to move more and more to the back of what interests us. He is "the hero," but not the hero. I think this is very intentional on the author's part. I think it is intentional that certain parts of the book drag and one feels forced to plod through them. This is perhaps Foer the author's way of pushing Foer the character into the background and bringing into the foreground Alex, his grandfather, and therefore the events that take place towards the end of the novel. The Jonathan character fades away as Alex, grandfather (and vicariously little Igor) are illuminated. In the beginning, Jonathan is Odysseus; in the end he is Ishmael. Perhaps this is also something that the double-house represents. The Jonathan side of the story and the Alex side. It seemed that the switch-over was most noticeable at the point where Alex says that it is he who was born to be a writer, and not Jonathan. Perhaps that was Foer the author's way of telling the reader, "hey... if you haven't noticed yet, pay attention! I'm taking the weight off of one foot (Jonathan) and putting it on the other (Alex)." The way Alex's forthright honesty develops is probably more of an indication of how the relationship between Jonathan and Alex develops more than it is an indication of any change in Alex as a character. Another fascinating thing to Foer the author's approach. Character development without character change. Alex might even think he had changed, but rather it seems that he was more revealed than altered. Stepping into the role of "man of the house" is a new role, but it shows the character that exists, and that has been revealed in the course of the book. It is not a story about how the responsibility will change him, but rather we are gradually shown the character who then steps up to the plate of responsibility.
I've written more than I intended. I've left out any discussion of the philosophy and probable worldview of the author. Overall, probably an enjoyable book. I'll have to see how I think about it as time progresses.