For what's considered reality, so much value is accorded the unknown. Bankers and investors call it futures. This has a history apparently going back to a law passed by King Hammurabi: you were absolved of your debts if all your assets were wiped out by some unforeseen calamity—water or fire, plague, war; your own resulting demise. It's why those who can, shell out fixed amounts each month for life, accident, flood insurance. So many nets to build, to catch you should you fall or fail. Pushing off from a country you'll leave behind for another where you have no idea of welcome or how long you can stay, what is the best equipment for long travel? A bird that returns to the lonely branch of your wrist, a camel which swims through sand?