Factoring Humanity - reading

Finished "Factoring Humanity" by Robert J. Sawyer. In this book, a signal comes from Alpha Centauri for years, then suddenly stops. What does it mean? But then we go through the lives of a broken family in Canada (of course - Sawyer's Canadian). I thought the story was good and it was a quick read - Sawyer's writing style seems to match what I like to read - but I wasn't a huge fan of where the story ultimately went. Interesting, for sure, but either not long enough or too long, depending on if you think as I did that what was presented could have been a short story, or if you think as I did that the story elements presented could have been explored much more deeply.