~3mph assumes modern equipment and infrastructure. You won&#x27;t get that with poorly designed shoes, a poorly designed backpack, on a barely beaten trail, and without a grocery store with (very) cheap food at every other street corner. And even if you imagined all of that, it&#x27;s only less than 9 months when you&#x27;re goal driven: you&#x27;d want to get a message from the east coast to the west coast - fast. Without such a goal, you&#x27;re just looking at the spread of hearsay through word of mouth - which is slow.