Days of yore.

In 1951 Beck submitted this revised edition of a map he had worked on for the Paris Metro in the late 1930s. But his map for the French capital was rejected and a diagrammatic approach to the city’s system wasn’t employed until 1999.

It's kind of like having a threesome with two ugly chicks. While it's happening you're stoked, because hey threesome!!! But once you're finished it kinda sinks in about what you've done.