I began the book by stating the problem: human life does not seem to make sense. Intuitively, we think, human life is seriously flawed. No intelligent, beneficent designer would have designed human life the way that it is.
But if you give due consideration to the arguments of the foregoing chapters, I believe that you will agree that human life does make sense in its fundamental facets. Most notably, as shown in chapter 8 on the meaning of life, if a competent designer wanted to design a meaningful life for a race of intelligent free agents, human life — in its fundamental facets — is what they would end up with. There aren't any other choices.
In closing, I trust that, in knowing that human life makes sense, you will appreciate it more deeply and you will live it more wisely.
Reference citation. Philip Bitar, adapted from Why Human Life Makes Sense, Editions 1/2/3, 2011/2012/2015, p. 154-155/214-215/448-451, posted at www.WhyHumanLifeMakesSense.com, 2011-08-26.