Now, Jeff had a little bit of an inflation fetish. It wasn’t his fault, he would claim, but it was the media he just happened to watch at a developing age. Seeing people inflated like balloons turned him on like nothing else, and he sometimes masturbated by rubbing his dick between a couple party balloons... or water balloons... he tried an inflatable doll once and that really confirmed his fetish for him! He was certainly a weirdo, but he didn’t care! Balloons turned him on, and he actually kind of wanted to blow up like a balloon himself.
So that’s what he decided to type into the Chronivac. He turned all humans into seamless rubber/latex people who could be inflated and deflated in many ways. Popping or bursting like a balloon wouldn’t kill them, and they would be right back to normal by midnight exactly. The points at which you could inflate someone were through the mouth or anus of a person, or through a valve that replaces the belly button. You could deflate someone by pricking them with a sharp point or by opening the bellybutton valve. Deflated people are still considered conscious and can still talk but they can’t move and feel quite lethargic like this. Popped people are considered unconscious until they reset at midnight. Sometimes elevated emotions or chemical reactions can cause inflations, and any food consumed digests into air that will cause some inflation. Water or juice or other liquids, meanwhile, doesn’t turn into air which allows for water balloon inflations.
The computer extrapolated from his inputs pretty well, filling in some of the gaps with appropriate details. Satisfied, Jeff set the world to "Retroactive Rewrite", set everyone to be unaware that anything has changed except for him. With a hit of the "EXECUTE" command, Jeff sat back and watched his world transform.