Around mile 78, my Garmin died so I switched to Strava on my phone. That too drained by mile 82, so I stopped Strava. No big deal, right? Except it was! I always run with my watch because I rely on the feedback it gives me — primarily, distance and time elapsed. Not having either was distressing. My only source of data in the last 18 miles of the race was the clock on my phone. And to make things worse, it started to drizzle. And I was gagging on my gel and burping. And my tummy was complaining. My Bubble of Joy had shattered and the mental battles started in earnest.