The nasty thing about travel is that you must pass through the undesirable places in between two points in space if you are to reach your destination. This problem of voyage has since been addressed in ludological form by Portal, one of the best video games of all time and predecessor of Portal 2, wherein the protagonist, Chell, awakes in an Aperture Science Enrichment facility governed by the mechanical voice of the Genetic Lifeform and Disk Operating System or GLaDOS, whose sole purpose is to test for the betterment of the future today. In the first video game, we learn that the product being tested is the portal gun, which allows two portals to appear in two surfaces, and passing through one portal leads one to come out of the other. Chell, as well as the product, is being tested by going through various testing chambers. It soon becomes clear that not all is right when, after proceeding through a crack in the wall, Chell realizes there are no humans in observatory decks and offices; all this just as GLaDOS, who has been polite but menacingly sinister during the whole time, reveals her personality and becomes outright homicidal with a tinge of passive-aggressive sarcasm.
