Death is always strange, but modern technology has a way of making it stranger still. My father died last month and, as I relate in this podcast, one of the first things I did after I heard the news was to call his cell phone. I'm not entirely sure why. But call I did, and I interacted with the digital remnants of the man that was. In the weeks that have followed, I've e-mailed his account a couple of times as well, an act that feels equal parts weird and therapeutic. What does it all mean?