So, boat turns take 5 minutes and the hiker’s turns take 10 minutes with each squiggly-lined segment adding 20 minutes to a journey. If the journey lasted 90 minutes in total, did the hitchhiker take the top road or the bottom one?
The recorded history of navigation dates back to around 3500 B.C., when boats large enough to carry goods were first recorded. They weren’t all that elaborate and those aboard had to ensure that they stayed close to shore, using land characteristics or distant monuments as navigational tools. Still impressive, though.