BUS 47 or BUS 48?
Here is a practical illustration of Two Paths based on public transportation in Singapore. Just outside the residence where my wife and I live, there’s a bus stop where we can take a large number of buses heading in varied directions. If we wish to go to the nearby Parkway Parade Shopping Centre, we can catch either Service 47 or Service 48. Both of those buses will also take us beyond the shopping mall to Amber Road, so if that road is our destination, it wouldn’t matter which of the two buses we boarded. But once past Amber Road, Service 47 and Service 48 travel in two completely different directions, and we’d have to ensure that we caught the correct bus from home to avoid ending up far from our intended destination.
It is so important to be on the right bus at the point of demarcation if we want to travel in the correct direction.