This is a book by Scott Adams, the creator of Dilbert.
The subtitle of this book is "A Thought Experiment". You are told to try and figure out what is wrong with the old man's explanation of reality - the old man is one of the two characters in the book.
While the old man does offer some interesting thoughts on God and probability, overall I did not like what he had to say all that much. It made life seem rather pointless in many ways. Maybe I just did not get it - if you read it and do get it, please explain it to me. Maybe I did get it after all, and that is why I reacted the way I did. I'll have to think on that some more I guess.
In spots, I thought the science itself was not quite right, and there seemed to be some holes in the logic here and there. This bugged me quite a bit and made it hard for me to keep an open mind on the rest for some reason. Maybe this was due to the note on there being something wrong with what the old man said.
That there is a sequel does confuse the issue further for me, as it seems to stick to the old man's argument from what I can tell. I do NOT plan to read it, so let me know if I missed out by not.
Give God's Debris a try if you want, but don't say I didn't warn you. I would like to hear what you think if you do read it though.