On: Cassette tape-based navigation system from 1971

[mongol]

So if I want to go from A to B, how do I get the tape for that? And if I make the wrong turn, am I screwed?

Granted, it is impressive for it's time.

[beenBoutIT → mongol]

You'd have to put in a new tape for every A to B scenario or even a return trip of B to A.

[contingencies → beenBoutIT]

And again for every human language, and again for every temporary road closure.