Schrodinger's thought experiment, commonly known as Schrodinger's cat, is often used to illustrate the concept of superposition in quantum mechanics. Superposition refers to the ability of quantum systems to exist in multiple states simultaneously until they are observed or measured.
While it is true that atoms and particles can exist in superposition, this phenomenon does not directly translate to macroscopic objects, such as humans or everyday objects. The reason for this has to do with a property called decoherence.
Decoherence is the process by which quantum systems interact with their surrounding environment, leading to the loss of quantum coherence and the emergence of classical behavior. In the case of macroscopic objects, the interactions between countless atoms and particles that make up the object quickly lead to a loss of superposition and the emergence of well-defined classical properties.
The transition from the quantum realm to the classical world is still an active area of research and the subject of ongoing scientific investigation. Various theories and models, such as the decoherence theory and quantum-classical hybrid theories, attempt to explain this transition and why macroscopic objects do not exhibit quantum superposition on a visible scale.
In summary, although the fundamental constituents of our bodies, such as atoms and particles, can exist in superposition, the interactions and processes at the macroscopic level lead to the emergence of classical behavior, effectively preventing us from being in multiple positions simultaneously.