So let's setup a system whereby a customized email is sent to users every morning: "Today was a great day! You walked 25 miles before a thrilling and ultimately triumphant encounter with an aged caribou that took 30 minutes of fierce running. Clean water was extremely scarce, but you managed also to find some grubs along the way. Feast away, the meat rots in 24 hours. Injuries included minor laceration to the left quadriceps and some blistering of the feet. Your search for a mate goes empty handed."

It's left up to the user to replicate the salient details in reality. Although perhaps with a mobile device, this app could be real-time.