The book starts out by asking a simple question: chocolate or vanilla? This seemingly trivial question leads to overly complicated scenarios, as the character in the story is led by the reader through tasks that will hopefully keep humankind from being destroyed. There is the opportunity to test a time machine, worry about a doomsday device, investigate a lab, meet a mad scientist, and more.
While the tubes make the story interesting, they also make it seemingly harder for readers to make sure they are on the correct page. It is best to use one's finger to follow the tubes to ensure that the wrong path is not taken.
For readers interested in something different, unique, and marching to its own drummer (in a good way), 'Meanwhile' is the right book to check out. It will certainly keep readers on their toes.