I listened to the Audible book in 2021, before thru hiking the AT. I thought I'd never get lost, since had GPS on my phone. I had to leave the trail to relieve myself, just like Inchworm. When I tried to get back , GPS said I was already on the AT. After walking a few yards, GPS said I was off trail. It took me 3 hours to find the trail. Vegetation is so dense in Maine. Without GPS, I could wandered off.