Milepost: Walk to Deliver

Milepost is a letter you seal tonight and cannot reopen until you have walked to it. Write it, seal it, walk it there. Once the wax is on, the letter is unreadable even to you, and the only thing that moves it is your own walking: 1,000 steps become one mile, one for one. HOW IT WORKS 1. Write to your future self, or to someone you can't say it to. 2. Seal it and choose the distance: 30, 70, 210 or 490 miles, or your own between 10 and 1,000. 3. Walk. It opens the day you arrive, not a step sooner. THERE IS NO CLOCK Nothing here arrives because a date came round. A letter moves when you walk and stands still when you don't — and standing still costs you nothing. It never expires, never disappears and never slides backwards. It is on the road, waiting for you. The rate is posted in Settings and never changes. The only thing ever shaved off is a daily cap of 30,000 steps, there to catch a…