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This is just an account but good stories, especially children's stories needs to have a morale towards the tale and Wall-e just isn't exception. The story is approximately how a humans had treated planet earth so while living there that they just exhaust space to dispose of all of the rubbish that they created. All the humans had left earth to travel continue to exist a spaceship for 5 years as the mess was settled by robots but the earth became toxic and killed everything that was living except a strange bug or two. 700 years later the humans remained living aboard the spaceship waiting for indications of life in order to return. Finally, you can choose how long it is until the background image changes, from mere seconds to minutes, from a couple of hours to just once a day. Click "Save changes" to commit these edits and go back to your desktop to await the next change in its visual finery.