Schrödinger's Cat has acquired many descriptions and interpretations since its introduction in 1935. This paper returns to Schrödinger's original text and separates what Schrödinger explicitly constructed from what is inferred from the construction. Schrödinger specified a steel chamber, “a tiny amount” of radioactive substance, a Geiger counter, relay, hammer, poison, a one-hour interval, equal possibilities that one atom decays or none does, and “the first atomic decay” as the decisive occurrence. He then described the wave function of the entire system as containing the living and dead cat “mixed or smeared in equal parts.” However, not knowing which of two mutually exclusive states is true, or being unable to rule out either, does not imply that both are physically true. The distinction involves not only Schrödinger's Cat but also Schrödinger's YOU—the observer outside the steel chamber who lacks information. Moreover, the causal chain from atomic decay to the cat's death contains additional physical and biological conditions. The original construction should therefore distinguish the physical cat, its quantum-mechanical description, and the information available to YOU.
The most famous cat in modern physics must be the Schrödinger’s Cat, in which he hypothesized that his cat cannot be determined alive or death until we look into his box. By which the paradox of his half-live cat had been puzzling the quantum physicists over three-quarters of a century since Schrödinger disclosed it in a Copenhagen forum in 1935. Since the disclosure, the paradox has been debating by Einstein, Bohr, Schrödinger himself, and many other renowned physicists, until now. We have found the cause of the paradox and we will show in this chapter of which the hypothesis of Schrödinger’s Cat is not a paradox after all. It was the timeless radioactive particle he introduced into the box, since timeless and temporal spaces are mutually exclusive. We will show that the whole Schrödinger’ quantum world is timeless (i.e., t = 0) and his fundamental principle of superposition is timeless, since his quantum mechanics was built within an empty subspace. We will also stress that Schrödinger equation is mathematics and it is primarily designed to calculate particle’s quantum dynamics using particle-wave duality. Similar to the set of Maxwell equations, the solution has to satisfy the boundary condition of our universe: dimensionality, temporal, and causality (i.e., t > 0) condition.
Schrödinger's cat was never dead and alive. It was a victim of a category error: conflating mathematical randomness with physical Hundun (混沌, from traditional Chinese sense: a seemingly disordered flow that nevertheless contains traceable causal threads). Mathematical randomness is timeless and describes ensembles. Physical Hundun is time-asymmetric, causally structured, and asymptotically predictable. In the XLG cosmology, radioactive decay is not acausally random; it is driven by local fluctuations of the KuiQuark sea. The fate of the cat is locked the moment the box is closed; opening it does not collapse a wave function, but reads a result already written. The cat is no longer a paradox of quantum foundations, but a demonstration case for a physics of Hundun with time. 薛定谔的猫从未既死又活。它是一个范畴错误的牺牲品:将数学随机与物理混沌(中国传统意义上的混沌——表象杂乱却蕴含可理清因果的信息流)混为一谈。数学随机无时间,描述系综。物理混沌有时间、有因果结构、可渐近预估。在XLG宇宙学中,放射性衰变不是无因随机,而是由亏克海的局域涨落驱动。盒盖关闭瞬间,猫的命运即已被锁定;打开盒子不是坍缩波函数,而是读取已被写定的结果。猫不再是量子力学的基础悖论,而是时间之矢下混沌物理学的示范案例。