Matt Sims said: "Nostalgia is a funny thing. It can lead you to believe that the stuff from your memories is better than it actually ever was. I call this little process “selective memory,” and basically it boils down to the fact that you remember the good things about your memories rather than the bad things. For example, let’s say that you had a dog during your childhood and you recall this dog being an amazing companion. You remember playing fetch and having a fantastic time, when in reality the dog was barely capable of chasing his own tail and chewed the upholstery off the furniture. You hold the dog in high regard because you developed an affinity for the dog, not because the dog was actually a great dog."