Would anyone be interested in building a decentralised courier?
Bitcoin seemed like an effort to remove power from the central banks, and other cryptocurrencies are working on solving problems with voting/supply chains/other stuff which the government makes complicated that could be made really simple, so why not replace USPS/China Post/other giant government monopolies that run the courier/delivery industry. I mean, USPS is losing billions every year delivering packages, and goodness only knows how much data companies like Amazon/UPS/DHL are collecting on people's identities, addresses, purchasing history etc.
I live in London, I can order a product that's 10 miles from where I live and it still takes at least a day for it to arrive at my doorstep, when I could just pay somebody to drive over there, pick it up and bring it to me in under an hour.