Cheryl Strayed’s memoir is narrative-driven but reflective. Every book has its inherent impossibility. For Wild it was about me walking alone through the wilderness for 94 days; it could have been really boring. The challenge there was to convey what was happening inside of me. The trail was always there, that was the great constant, but I was always different on the trail.—Cheryl Strayed in an interview I threw out the first act of my memoir in June—it was too …