The concept of someone being the same size and weight as the entire universe is not scientifically feasible or meaningful within our current understanding of physics. The universe is an immense and ever-expanding expanse that encompasses all matter, energy, and space. It does not have a specific size or weight that can be measured or compared to an individual.
However, if we were to imagine a hypothetical scenario where an individual had somehow acquired the same mass and size as the entire universe, it would lead to some profound and bizarre consequences. The laws of physics, as we currently understand them, would likely break down in such a situation.
Firstly, the notion of someone occupying the same space as the entire universe would imply that they are present everywhere simultaneously, which contradicts our understanding of space and locality. The fundamental principles of general relativity and quantum mechanics, which govern the behavior of space, time, and matter, would be severely challenged or invalidated.
Secondly, the act of "punching" the universe would also be nonsensical because the individual would be punching themselves as well. In this hypothetical scenario, the individual and the universe would be one and the same, making it impossible for them to exert any force on the universe without exerting an equal and opposite force on themselves.
Ultimately, it is important to recognize that this hypothetical scenario ventures beyond the realms of our current scientific understanding. While it can be an entertaining thought experiment, it does not align with the principles and laws of physics as we currently know them.