I've read all 3 of the books and they're entertaining, but Shift was my least favorite. Please indulge me while I rant.

My biggest concern was the 3 year timeline of everything that happened before the big event (2052 National Convention) that drove the majority of the people to the silos. From conception to occupation of the silos was 2049 (when Donald gets on board, reluctantly) to 2052 and all 50 numbered silos are built, filled, and ready for occupation. No practice runs, drills, etc. Thurman/Anna had been planning this for a few years before but asking someone with no practice in Architecture, other than a class assignment in creating an emergency housing situation, that looked like a silo, to get on board and create the entire thing is ridiculous. Ever renovated your house? The sheer number of people to get on board this project would have to be staggering and multinational. Are best digging machines, hydroponic farm systems, air quality systems and other basic items designed and made in the US? I would think that countries overseas would be the experts and would be all atwitter about having huge orders going to Georgia. No one leaked any news?

Um...no. The majority of people in the silos were filled with the attendees who were at the festival. No 'hey, lets get very specific people with specific skill sets in here ahead of time'. I understand that it makes it easy for the reader to engage in the short timeline (2029-2052). Holy hell... the amount of planning, people, materials, equipment, press coverage, etc makes the 3 year timeline impossible. All this time Donald is blissfully unaware that his architectural plans are for 'emergency housing' in case the spent nuclear fuel rods leaked or something. To build these things and fill them would require decades and trillions of dollars plus...the people of Fulton County didn't know this was going on? Eh.... nah.

Any company working to make something as specific as 'long term sleep pods' or some drug that can put people to sleep and have them be awake and alert within minutes after reviving is sus. To have the millions of meals, clothing, and needs of people to survive hundreds of years is just too much science fiction, considering that this would literally take place in less than 30 years. Also, to have an entire Silo (1) of men only seems to be a recipe for disaster. Like, no one sneaked in and figured out how to thaw out their wife? Oh right... they didn't know they had a wife...or kids...or their real name. So, just a bunch of men happily working 6 month shifts not questioning human needs and urgencies? Hmmm..

If people worked 6 month shifts and then were put to sleep for 100 years, that would mean that the number of people required to do one job would be 50 so that there was overlap. This would mean 50 'Troy/Donald', etc. No one changed any policies, procedures, menus, etc. Just plugging along like human bots without question. Right, its in the water, or air or something.

2212 is when Silo 18 has its uprising (Mission's story) and Donald is awake for that and gets into trouble. Sneaky ThawMan (Thurman) wakes up his daughter (because she's the only one, apparently, to be able to figure things out). He really didn't get the best and brightest.

I don't know, I liked the book. I liked Mission and the story, but the timeline threw me. The reasoning behind everything that the nanobots would cause extinction of entire races of people by simply having them airborne... don't know. I would think that instead of silos and enslaving people to the ideology of this, you'd just invest time and effort to counter the nanobots with your own. By bombing each other back and forth into non-existence and having uneducated people as the future members of humanity being the ones to take over just made no sense.

Sorry for the long rant. It was an entertaining book, if you can suspend your disbelief and try not to roll your eyes everytime that Donald starts bawling his eyes out.