Because, let's be real, you've been doing the same 10 hours of research for the past month, and your boss is breathing down your neck, and you really need to justify those extra 5 hours of gaming time.
Level 4: The Gaming Simulation Hypothesis (aka "The Universe is Just a Video Game")
Or, if you're feeling really stuck, try Level 7: The Dark Side of Gaming (aka "When Gaming Becomes an Addiction")