Ooh, I should make it so people eat through their asses and crap from their mouths, like that one South Park episode! So she typed in “The human digestive system is inverted” and hit enter.
The human digestive system is inverted, people now eat food through their anuses and drink liquid through their urethras, and then vomit waste from their mouths. Their anuses and urethras, are now coated with tastebuds so that they can still taste their food and drink. The tastebuds also extend to their genitals, so now penises and vaginas can taste eachother during sex. Additionally, the social stigma around going to the toilet is transferred to eating, with bathrooms being replaced with open air stalls with public receptacles to vomit in, akin to a sort of bar, whereas restaurants are divided into stalls for people to eat in private. In sit-down restaurants, the staff will set the table within the stall for each individual person, and when their food is ready the staff simply tell the person their stall is ready for them, or in larger restaurants, the customer will wait in a waiting room (which includes several vomiting stalls) until their food is served and their number is called. Public spaces will often have private stalls with water fountains where people can quench their thirst and maybe enjoy a snack. Camelback backpacks are much more widely used by the general public due to their convenience, with special ends designed to be inserted into the urethra. Some people even opt for having liquid meal replacements stored on their backs as well, avoiding the hassle of eating almost entirely. Another thing to note is that, though the anus now produces saliva, many foods still need to be chewed before they can be swallowed by it, meaning that the mouth still plays some part in eating, as well as speaking, breathing, and expelling waste, meaning that it needs to be constantly cleaned to prevent infection from chewed food being contaminated. As a result, most people carry around mouthwash, toothbrushes, and toothpaste, which can be used at the sinks which are included in nearly all eating stalls, as well as most vomiting stalls (henceforth referred to as “vomitoriums”) so that people can clean their mouths immediately after they relieve themselves to avoid bacteria building up on their teeth, and also to wash the taste out of their mouths. The typical process for eating is to chew each bite thoroughly before spitting it onto a separate plate, then sitting on that plate, pulling the food in with the ass cheeks, and eating the chewed food with the anus, both of which have increased motor control and flexibility to accomplish this. Once the solid part is fully eaten, the liquid left over on the plate can then be slurped up by the urethra. This fairly graphic process is the main reason why eating is typically a strictly private affair, though there are adult-only restaurants that allow customers to eat together and share meals, often accompanied by sex. Couples will often share meals in private, which is seen as a big step in a relationship, a level which is somewhere between kissing and sex. Additionally, people will sometimes drink alchohol through their mouths, which is akin to butt-chugging it, but can be done fully clothed, and so public bars still exist, often merged with vomitoriums. Due to the rearranged anatomy, the alchohol consumed through the mouth is absorbed much quicker, which, as stated above, is equivalent to if a person from our world poured it into their rectum.
All of these changes retroactively altered the course of history in unpredictable ways, possibly overwriting some of the societal changes above, and probably leaving Laura a completely different person living in a very different world. She might speak a different language, and though she hasn’t moved an inch, might now live in a totally different country which didn’t exist before, as a completely different person who had lived a completely different life up to this point. It was a miracle the tablet still existed given how drastically different technology might be this world. So who exactly is the person who had once been Laura now?