The logic you're describing is based on a playfully philosophical perspective and doesn't align with objective reality. It relies on a form of subjective solipsism, a philosophical idea that suggests that the only thing one can be certain of is their own consciousness. According to this perspective, one might question whether anything beyond their own mind exists or if everything is a creation of their own perception.
In the context of your question, if you consider that the whole universe could be wearing your shirt inside out except for you, it implies that everything in the universe is a construct of your mind, and you are the sole observer. This viewpoint, however, is purely speculative and not supported by scientific evidence.
In reality, the universe exists independently of our individual perceptions. If you were to wear a shirt inside out, it would simply mean that your shirt is turned in the opposite way from its usual orientation. Other people and objects in the universe would remain unaffected by the state of your shirt.
While philosophical ponderings can be intriguing and thought-provoking, it's important to recognize the distinction between subjective perspectives and objective reality.