薛定谔，猫
Schrödinger, The Cat
一、那只猫
1935年。一封信。写给爱因斯坦。
薛定谔在信里描述了一个思想实验。一只猫。一个密封的箱子。箱子里有一个放射性原子，一个盖革计数器，一瓶毒药。如果原子衰变了，计数器触发，毒药释放，猫死了。如果原子没有衰变，猫活着。
量子力学说：在你打开箱子之前，原子处于衰变和未衰变的叠加态。所以猫处于活和死的叠加态。猫同时是活的和死的。
薛定谔觉得这"荒谬透顶"。
他发明这个思想实验是为了嘲笑哥本哈根诠释——为了说明量子力学的主流解释有问题。一只猫怎么可能同时是活的和死的？
但历史跟他开了一个玩笑。这只猫活了下来。不是作为反驳——是作为量子力学最有名的意象。他想用来嘲笑的东西变成了他最大的遗产。
他凿了一只猫来证明叠加态是荒谬的。猫变成了叠加态的代言人。
凿出来的东西不听凿的人的。
二、他
埃尔温·薛定谔。1887年出生于维也纳。跟玻尔兹曼是同一个城市——维也纳。薛定谔年轻时对玻尔兹曼的概率论很感兴趣。两个人之间有一条看不见的线。
他的父亲是工厂主和植物学家。母亲有一半英国血统。他从小说德语和英语。
1926年。他三十八岁。在苏黎世的一个疗养院里（他有肺结核，反复发作），他写出了薛定谔方程。六篇论文。一年之内。
薛定谔方程描述的是波函数——ψ。波函数是什么？它描述了一个量子系统的状态。但波函数给出的不是确定的答案——给出的是概率。电子在哪里？波函数不告诉你"在这里"。它告诉你"在这里的概率是多少"。
在你观察之前，电子不在一个确定的位置。它在所有可能的位置上。它是一个概率分布。你观察了——波函数坍缩了——它才"在"某个地方。
1933年诺贝尔物理学奖。跟狄拉克分享。1933年离开德国——反对纳粹。1938年逃离奥地利。1940年到都柏林——爱尔兰总理德瓦莱拉亲自邀请他。他在都柏林待了十七年。
1944年他写了《生命是什么？》——一本物理学家写的生物学书。沃森和克里克后来说这本书启发了他们发现DNA双螺旋。
他对吠檀多哲学（印度教）有深厚的兴趣。他相信个体意识可能只是一个统一意识的表现。他说过："意识不能用物理术语来解释。意识是绝对基本的。"
跟拉马努金一样——跟印度的哲学传统有深层联系。但方向不同。拉马努金从印度传统里获得了数学的来源。薛定谔从印度传统里获得了对意识的理解。
1961年1月4日。维也纳。肺结核。七十三岁。
三、地板的最后一击
这个系列从亚里士多德开始。亚里士多德铺了地板。每样东西有它的位置。世界是确定的，可分类的，有秩序的。
然后一个一个人来凿。
法拉第掀开了地板的一角，摸到了场。场是看不见的，但它在那里。地板下面有东西。
玻尔兹曼掀开了热力学那块地板，看到了分子在乱跑。秩序是混乱的平均值。地板上的数字（温度）是假的——是底下无数分子随机运动的统计效果。
海森堡说你测不准。你不能同时知道位置和动量。不确定性不是你的仪器不够好——是世界本身就是不确定的。
薛定谔给了地板最后一击：地板在你踩之前根本不在那里。
在你观察之前，电子不在一个确定的位置。不是你不知道它在哪里——是它真的不在任何一个确定的地方。它在所有可能的地方。你观察了，波函数坍缩了，它才"出现"在一个位置。
亚里士多德说：每样东西有它的位置。 薛定谔说：在你看之前，没有东西有位置。
这是地板的最后一块碎片。从亚里士多德到薛定谔——地板从铺上到碎掉。一个完整的弧线。
四、他和海森堡
两个人。两种语言。同一个真相。
海森堡用矩阵力学。抽象的，代数的。你看不见它在说什么——你只能算。 薛定谔用波动方程。直觉的，可视化的。你能想象波——波是你见过的东西。
后来证明两种方法在数学上是等价的。矩阵力学和波动方程描述的是同一个世界。
跟法拉第和麦克斯韦的关系有呼应：法拉第用手摸到了场（直觉的），麦克斯韦用方程写出了场（抽象的）。同一个东西，两种语言。
海森堡说：你不确定。 薛定谔说：你无法确定。
一个强调的是你的观察的局限（你做不到）。一个强调的是世界本身的性质（世界就是这样的）。但最终说的是同一件事：确定性是一个构。一个假构。世界不是确定的。在你铺地板之前世界就不是确定的。地板是你铺的。你以为地板就是世界。地板不是世界。
五、猫和构
那只猫为什么这么有名？
不只是因为它有趣。是因为它触碰到了一个所有人都在意的问题：你看之前世界是什么样的？
你打开箱子之前，猫是活的还是死的？
日常经验说：当然是活的或者死的。你不看它也是。你看不看跟它没关系。 量子力学说：你不看它的时候，它处于两种状态的叠加。你看了，叠加态坍缩了，它才变成"活的"或者"死的"。
薛定谔觉得这荒谬。他用猫来说明这个解释有问题。但猫反过来说明了一件事：你以为世界不需要你就存在的——这个信念本身是一个构。你铺了一层地板叫做"客观实在"，你以为地板在那里不管你看不看。量子力学说：也许不是。也许你的观察参与了世界的构成。
这不是唯心主义——不是说"世界是你想出来的"。这是说：你和世界之间的关系比你以为的更深。你不是站在世界外面看世界的旁观者。你是世界的一部分。你的观察改变了你观察的对象。
这跟SAE有一个呼应。主体不是站在世界外面的旁观者。主体是世界的一部分。你看见了一个人——你改变了那个人。你被看见了——你被改变了。观察者和被观察者之间不是单向的——是双向的。是桥。
六、生命是什么
1944年。《生命是什么？》（What Is Life?）
一个物理学家写了一本关于生命的书。他问了一个问题：生命的物质基础是什么？基因是什么做的？
他猜测基因是一种"非周期性晶体"——一种有序但不重复的分子结构。这个猜测后来被证明惊人地接近真相——DNA双螺旋就是一种非周期性的结构。
沃森读了这本书。克里克读了这本书。两个人都说它影响了他们。1953年他们发现了DNA的结构。
薛定谔的方程描述了量子世界。薛定谔的书启发了生命科学的最大发现之一。他从物理学的缝隙里伸手出去，碰到了生物学。
这跟法拉第有一个平行：法拉第从电学的缝隙里伸手出去，碰到了磁学——发现了电磁感应。薛定谔从物理学的缝隙里伸手出去，碰到了生命——启发了DNA的发现。
缝隙不只是缝隙。缝隙是通道。
七、意识
"意识不能用物理术语来解释。意识是绝对基本的。它不能用别的东西来解释。"
薛定谔说的。一个物理学家说的。他写了描述量子世界的方程——然后他说意识不在方程里面。
这不是反科学。这是一个科学家在说：我的工具有边界。方程能描述电子的行为。方程不能描述你看到电子时发生了什么。看的那个人——观察者——不在方程里面。
玻尔兹曼看到了地板下面是乱的。但他没有问：谁在看？ 海森堡说你测不准。但他没有问：谁在测？ 薛定谔问了：谁在观察？观察者是谁？意识是什么？
他的答案来自吠檀多哲学：个体意识可能只是一个统一意识的表现。所有的"我"可能是同一个"我"。
这跟艾米莉·勃朗特说的是同一件事。凯瑟琳说"我就是希斯克利夫"——两个主体本来就是一个。薛定谔说所有的意识可能是同一个意识。
一个是物理学家的哲学。一个是小说家的直觉。说的是同一件事。
八、他说的话
"任务不是去看没有人看到过的东西，而是去想没有人想到过的东西——关于每个人都看到的东西。"
这句话可以做这个系列的题词。
每个人都看到了星空——只有梵高想到了它在旋转。每个人都看到了苹果落地——只有牛顿想到了为什么。每个人都看到了热水变冷——只有玻尔兹曼想到了底下的分子在乱跑。每个人都看到了一只猫——只有薛定谔想到了在你看之前它可能同时是活的和死的。
看到同一样东西。想到不同的东西。这就是凿。
九、叠加态
桥头上又多了一个人。他站着。或者他没有站着。
在你看到这句话之前，他处于站着和没有站着的叠加态。你读到了这句话——波函数坍缩了——他站着。
他手里抱着一只猫。猫是活的。因为你在看。
如果你不看呢？
苏格拉底站在空地上。柏拉图蹲着画图纸。休谟打台球。叔本华看桥底下。克尔凯郭尔跳了。图灵看苹果。契诃夫靠着栏杆。康托尔看天上。哥白尼放下书走了。萨特转来转去。波伏瓦举着镜子。蒯因说了一句话。特斯拉听嗡嗡声。爱迪生拿着灯泡。海森堡位置不确定。玻尔拿着没寄出的信。托尔斯泰拿着药方站在契诃夫对面。莎士比亚不在。斯宾诺莎手里有玻璃粉。亚里士多德蹲着铺地板。法拉第蹲着掀地板。麦克斯韦站着写方程。贞德带着火飘在桥的上方。王尔德站得很好看。拉马努金从缝隙里冒出半个身子。奥本海默背着灰。夏洛蒂拿着笔。艾米莉在荒原上。玻尔兹曼抱着石头。梵高身上有颜料。狄更斯站在裂缝上面。丘吉尔背着旗。罗斯福坐在轮椅上。
薛定谔站在亚里士多德旁边。亚里士多德在铺地板。薛定谔在看地板。
他看到了法拉第掀开的那个角——地板下面有场。 他看到了玻尔兹曼掀开的那块——地板下面是乱。 他看到了海森堡站的那个位置——位置不确定。
然后他看到了地板本身。
地板不在那里。
不是地板碎了——是地板从来就不是一个独立于你而存在的东西。你踩下去的那一刻地板才"在"。你不踩，地板不在。不是看不到——是不在。
亚里士多德抬头看了他一眼。两个人之间隔了两千三百年。亚里士多德铺了一辈子的地板。薛定谔告诉他：地板在你铺之前不在那里。
亚里士多德没有说话。他低头继续铺。
也许这就对了。你知道地板是你铺的。你知道地板在你铺之前不在。但你还是铺。因为不铺的话没有人能站。
远处。康德站着。
康德也听到了。康德的位置很有趣——他自己就说过类似的话："我们只能认识现象，不能认识物自体。"物自体在你的认识之外。你看到的世界是你参与构成的世界。
薛定谔的量子力学是康德的认识论的物理学版本。
康德点了一下头。他点了很多次了。但这一次可能是最深的一次。因为薛定谔说的不只是"你看不到物自体"——他说的是"你的观察参与了现象的构成"。你不是旁观者。你是参与者。
猫在薛定谔怀里。活的。因为你在读。[1][2]
注释
[1]
薛定谔"猫"与Self-as-an-End理论中"凿构循环"和"构不可闭合"的关系：凿构循环的核心论证见系列方法论总论（DOI: 10.5281/zenodo.18842450）。薛定谔的独特位置在于他是"亚里士多德地板的最后一击"——地板从铺上到碎掉的完整弧线：亚里士多德铺地板（世界确定，可分类），法拉第掀地板摸到场，玻尔兹曼掀地板看到乱，海森堡说测不准，薛定谔说地板在你踩之前根本不在。波函数ψ描述的是概率分布——在观察之前粒子不在确定位置，观察导致坍缩。薛定谔的猫思想实验（1935年）原意是嘲笑哥本哈根诠释，但猫反过来成了叠加态的代言人——凿出来的东西不听凿的人的。与海森堡的关系：两种语言（矩阵力学/波动方程）说同一件事（确定性是假构），后证明数学等价。与康德的呼应：薛定谔的量子力学是康德认识论的物理学版本——你只能认识现象，物自体在你的认识之外；观察者参与了现象的构成。与SAE的呼应：主体不是旁观者，主体是世界的一部分；观察者和被观察者之间是双向的，是桥。《生命是什么？》（1944年）启发了沃森和克里克发现DNA——从物理学的缝隙伸手碰到了生命，缝隙是通道。意识的问题：薛定谔说"意识是绝对基本的"，跟吠檀多哲学相通，跟艾米莉的"我就是希斯克利夫"（所有主体是一个）说的是同一件事。
[2]
薛定谔生平主要依据Walter Moore, Schrödinger: Life and Thought (1989)及John Gribbin, Erwin Schrödinger and the Quantum Revolution (2012)。出生于维也纳（1887年8月12日），父亲工厂主兼植物学家，母亲有英国血统。维也纳大学博士（1910年）。对玻尔兹曼概率论的早期兴趣参考Moore。薛定谔方程（1926年）六篇论文参考同上。1927年继任普朗克柏林大学职位。1933年诺贝尔物理学奖（与狄拉克共享）。1933年离开德国（反纳粹）。薛定谔的猫思想实验（1935年）与爱因斯坦通信参考Wikipedia及Moore。爱因斯坦1950年信"你是唯一诚实的"参考同上。"荒谬透顶"参考薛定谔原文。1938年逃离奥地利。都柏林高等研究院（1940-1955年），德瓦莱拉邀请参考Moore。《生命是什么？》（1944年）及对沃森和克里克的影响参考Watson, DNA, the Secret of Life及Crick, What Mad Pursuit。吠檀多哲学及"意识是绝对基本的"参考The Observer (1931)及My View of the World (1961)。"任务不是去看没有人看到过的东西"参考Ludwig von Bertalanffy引用。去世于维也纳（1961年1月4日），肺结核，七十三岁。系列第四轮第十五篇。前七十二篇见nondubito.net。
I. The Cat
- A letter. Written to Einstein.
Schrödinger described a thought experiment. A cat. A sealed box. Inside the box: a radioactive atom, a Geiger counter, a vial of poison. If the atom decays, the counter triggers, the poison is released, the cat dies. If the atom does not decay, the cat lives.
Quantum mechanics says: before you open the box, the atom is in a superposition of decayed and undecayed states. Therefore the cat is in a superposition of alive and dead. The cat is simultaneously alive and dead.
Schrödinger found this "quite ridiculous."
He invented the thought experiment to mock the Copenhagen interpretation—to show that the mainstream reading of quantum mechanics had a problem. How can a cat possibly be alive and dead at the same time?
But history played a trick on him. The cat survived. Not as a rebuttal—as the most famous image in quantum mechanics. What he meant to mock became his greatest legacy.
He chiseled a cat to prove that superposition was absurd. The cat became superposition's spokesperson.
What the chisel releases does not obey the one who struck.
II. Him
Erwin Schrödinger. Born 1887 in Vienna. The same city as Boltzmann. As a young man, Schrödinger was deeply interested in Boltzmann's probability theory. Between the two runs an invisible thread.
His father owned a factory and was a botanist. His mother was half English. He grew up speaking German and English.
- He was thirty-eight. In a sanatorium in Arosa, Switzerland (he had tuberculosis, which recurred throughout his life), he wrote the Schrödinger equation. Six papers. In one year.
The Schrödinger equation describes the wave function—ψ. What is the wave function? It describes the state of a quantum system. But what the wave function gives you is not a definite answer—it gives you probability. Where is the electron? The wave function does not say "here." It says "the probability of being here is such-and-such."
Before you observe, the electron is not at a definite position. It is at all possible positions. It is a probability distribution. You observe—the wave function collapses—and only then is it "somewhere."
1933 Nobel Prize in Physics, shared with Dirac. Left Germany in 1933—opposed the Nazis. Fled Austria in 1938. Arrived in Dublin in 1940—Irish Taoiseach de Valera personally invited him. He stayed seventeen years.
In 1944 he wrote What Is Life?—a book about biology written by a physicist. Watson and Crick later said it inspired their discovery of the DNA double helix.
He had a deep, lifelong interest in Vedanta philosophy. He believed that individual consciousness might be merely a manifestation of a unitary consciousness pervading the universe. He said: "Consciousness cannot be accounted for in physical terms. For consciousness is absolutely fundamental."
Like Ramanujan—a deep connection to Indian philosophical tradition. But in a different direction. Ramanujan drew the source of his mathematics from that tradition. Schrödinger drew his understanding of consciousness from it.
January 4, 1961. Vienna. Tuberculosis. Seventy-three years old.
III. The Final Blow to the Floor
This series began with Aristotle. Aristotle laid the floor. Everything has its place. The world is determinate, classifiable, orderly.
Then, one by one, people came to chisel.
Faraday pried up a corner of the floor and touched the field. The field is invisible, but it is there. Something exists beneath the floor.
Boltzmann pried up the thermodynamics plank and saw molecules running randomly. Order is the average value of chaos. The numbers on the floor (temperature) are illusions—statistical effects of countless random molecular motions underneath.
Heisenberg said you cannot measure precisely. You cannot simultaneously know position and momentum. Uncertainty is not because your instruments are insufficient—it is because the world itself is uncertain.
Schrödinger delivered the final blow: the floor is not there until you step on it.
Before you observe, the electron is not at a definite position. Not that you do not know where it is—it genuinely is not at any definite place. It is at all possible places. You observe—the wave function collapses—and it "appears" at a position.
Aristotle says: everything has its place. Schrödinger says: before you look, nothing has a place.
This is the last fragment of the floor. From Aristotle to Schrödinger—the floor is laid and then shattered. A complete arc.
IV. Schrödinger and Heisenberg
Two men. Two languages. The same truth.
Heisenberg used matrix mechanics. Abstract, algebraic. You cannot see what it is saying—you can only calculate. Schrödinger used the wave equation. Intuitive, visualizable. You can imagine a wave—a wave is something you have seen.
It was later proved that the two methods are mathematically equivalent. Matrix mechanics and the wave equation describe the same world.
This echoes the relationship between Faraday and Maxwell: Faraday touched the field with his hands (intuitive); Maxwell wrote the field in equations (abstract). The same thing, two languages.
Heisenberg says: you are uncertain. Schrödinger says: you cannot be certain.
One emphasizes the limitation of your observation (you cannot do it). The other emphasizes a property of the world itself (the world is like this). But ultimately they say the same thing: determinacy is a construct. A false construct. The world is not determinate. Before you lay the floor, the world was already indeterminate. The floor is something you laid. You thought the floor was the world. The floor is not the world.
V. The Cat and the Construct
Why is the cat so famous?
Not merely because it is entertaining. Because it touches a question everyone cares about: what is the world like before you look?
Before you open the box, is the cat alive or dead?
Common experience says: of course it is one or the other. Whether you look or not. Your looking has nothing to do with it. Quantum mechanics says: when you are not looking, it is in a superposition of both states. You look—the superposition collapses—and only then does it become "alive" or "dead."
Schrödinger thought this was absurd. He used the cat to show the interpretation was flawed. But the cat turned around and demonstrated something else: your belief that the world exists independently of you—that belief is itself a construct. You laid a floor called "objective reality," and you assumed the floor is there whether you look or not. Quantum mechanics says: perhaps not. Perhaps your observation participates in constituting the world.
This is not idealism—not "the world is something you imagined." It is this: the relationship between you and the world is deeper than you assumed. You are not a bystander watching the world from outside. You are part of the world. Your observation changes what you observe.
This echoes SAE. The subject is not a bystander standing outside the world. The subject is part of the world. You see a person—you change that person. You are seen—you are changed. Between observer and observed, the relationship is not one-directional—it is bidirectional. It is a bridge.
VI. What Is Life
- What Is Life?
A physicist wrote a book about life. He asked: what is the physical basis of life? What are genes made of?
He conjectured that genes are a kind of "aperiodic crystal"—an ordered but non-repeating molecular structure. This conjecture proved astonishingly close to the truth—the DNA double helix is precisely an aperiodic structure.
Watson read this book. Crick read this book. Both said it influenced them. In 1953 they discovered the structure of DNA.
Schrödinger's equation described the quantum world. Schrödinger's book inspired one of the greatest discoveries in the life sciences. From the gap in physics, he reached out and touched biology.
This parallels Faraday: Faraday reached from the gap in electricity and touched magnetism—discovering electromagnetic induction. Schrödinger reached from the gap in physics and touched life—inspiring the discovery of DNA.
A gap is not just a gap. A gap is a passage.
VII. Consciousness
"Consciousness cannot be accounted for in physical terms. For consciousness is absolutely fundamental. It cannot be accounted for in terms of anything else."
Schrödinger said this. A physicist said this. He wrote the equation describing the quantum world—then said consciousness is not inside the equation.
This is not anti-science. It is a scientist saying: my tool has a boundary. The equation can describe the behavior of an electron. The equation cannot describe what happens when you see the electron. The person who sees—the observer—is not inside the equation.
Boltzmann saw that beneath the floor is disorder. But he did not ask: who is seeing? Heisenberg said you cannot measure precisely. But he did not ask: who is measuring? Schrödinger asked: who is observing? Who is the observer? What is consciousness?
His answer came from Vedanta philosophy: individual consciousness may be merely a manifestation of a unitary consciousness. All "I"s may be the same "I."
This is the same thing Emily Brontë said. Catherine said "I am Heathcliff"—two subjects were always one. Schrödinger said all consciousness may be one consciousness.
One is a physicist's philosophy. The other is a novelist's intuition. They say the same thing.
VIII. What He Said
"The task is not so much to see what no one has yet seen; but to think what nobody has yet thought, about that which everybody sees."
This sentence could serve as the epigraph for this entire series.
Everyone sees the night sky—only Van Gogh thought of it swirling. Everyone sees an apple fall—only Newton thought of why. Everyone sees hot water cool—only Boltzmann thought of the molecules running randomly beneath. Everyone sees a cat—only Schrödinger thought that before you look, it might be simultaneously alive and dead.
See the same thing. Think a different thought. That is what chiseling is.
IX. Superposition
One more person on the bridge. He is standing. Or he is not standing.
Before you read this sentence, he was in a superposition of standing and not standing. You read it—the wave function collapsed—he is standing.
In his arms he holds a cat. The cat is alive. Because you are looking.
What if you were not?
Socrates stands on the clearing. Plato crouches drawing blueprints. Hume plays billiards. Schopenhauer looks under the bridge. Kierkegaard jumped. Turing looks at the apple in his hand. Chekhov leans against the railing. Cantor stares upward. Copernicus set down a book and walked away. Sartre paces with his pipe. Beauvoir holds a mirror. Quine said one quiet sentence. Tesla listens to the hum. Edison holds a dead lightbulb. Heisenberg's position is uncertain. Bohr holds a letter he never sent. Tolstoy holds a prescription, facing Chekhov. Shakespeare is not there. Spinoza has glass dust on his fingers. Aristotle crouches, laying floor. Faraday crouches, prying up a plank. Maxwell stands writing equations. Joan floats above the bridge, carrying fire. Wilde stands beautifully. Ramanujan has emerged halfway through a gap. Oppenheimer carries ash. Charlotte holds a pen. Emily is on the moors. Boltzmann cradles a stone. Van Gogh is covered in paint. Dickens stands over a crack. Churchill carries a flag. Roosevelt sits in a wheelchair.
Schrödinger stands beside Aristotle. Aristotle is laying floor. Schrödinger is looking at the floor.
He sees the corner Faraday pried up—beneath the floor, the field. He sees the plank Boltzmann pried up—beneath, disorder. He sees where Heisenberg stands—the position is uncertain.
Then he sees the floor itself.
The floor is not there.
Not that the floor has shattered—the floor was never a thing that existed independently of you. The moment you step on it, the floor "is." If you do not step, the floor is not. Not invisible—not there.
Aristotle looks up at him. Between the two men: twenty-three hundred years. Aristotle has spent a lifetime laying floor. Schrödinger tells him: the floor was not there before you laid it.
Aristotle says nothing. He lowers his head and continues laying.
Perhaps that is right. You know the floor is something you laid. You know the floor was not there before you laid it. But you lay it anyway. Because if no one lays it, no one can stand.
In the distance. Kant is standing there.
Kant heard it too. Kant's position is interesting—he himself said something similar: "We can know only phenomena, not the thing-in-itself." The thing-in-itself is beyond your cognition. The world you see is a world you have participated in constituting.
Schrödinger's quantum mechanics is the physics version of Kant's epistemology.
Kant nods. He has nodded many times. But this time may be the deepest. Because Schrödinger is not merely saying "you cannot see the thing-in-itself"—he is saying "your observation participates in constituting phenomena." You are not a bystander. You are a participant.
The cat is in Schrödinger's arms. Alive. Because you are reading.[1][2]
Notes
[1]
Schrödinger as "the cat" and its relationship to the chisel-construct cycle and the non-closure of constructs in Self-as-an-End theory: for the core argument on the chisel-construct cycle, see the series methodology paper (DOI: 10.5281/zenodo.18842450). Schrödinger's unique position is that he is "the final blow to Aristotle's floor"—the complete arc from floor laid to floor shattered: Aristotle laid the floor (the world is determinate, classifiable); Faraday pried it up and touched the field; Boltzmann pried it up and saw disorder; Heisenberg said you cannot measure precisely; Schrödinger said the floor is not there before you step on it. The wave function ψ describes probability distributions—before observation, a particle is not at a definite position; observation causes collapse. Schrödinger's cat (1935) was intended to mock the Copenhagen interpretation, but the cat became superposition's spokesperson—what the chisel releases does not obey the one who struck. Relationship with Heisenberg: two languages (matrix mechanics / wave equation) saying the same thing (determinacy is a false construct); later proved mathematically equivalent. Echo of Kant: Schrödinger's quantum mechanics is the physics version of Kant's epistemology—you can know only phenomena, not the thing-in-itself; the observer participates in constituting phenomena. Echo of SAE: the subject is not a bystander; the subject is part of the world; observer and observed are bidirectional—a bridge. What Is Life? (1944) inspired Watson and Crick's discovery of DNA—from the gap in physics, Schrödinger reached and touched biology; the gap is a passage. Consciousness: Schrödinger said "consciousness is absolutely fundamental," resonating with Vedanta philosophy and with Emily Brontë's "I am Heathcliff" (all subjects may be one).
[2]
Primary biographical sources: Walter Moore, Schrödinger: Life and Thought (1989); John Gribbin, Erwin Schrödinger and the Quantum Revolution (2012). Born in Vienna (August 12, 1887), father factory owner and botanist, mother half English. PhD University of Vienna (1910). Early interest in Boltzmann's probability theory per Moore. Schrödinger equation (1926), six papers, per same. Succeeded Planck at Berlin 1927. 1933 Nobel Prize in Physics (shared with Dirac). Left Germany 1933 (anti-Nazi). Schrödinger's cat thought experiment (1935), correspondence with Einstein, per Wikipedia and Moore. Einstein's 1950 letter "you are the only one who is honest" per same. "Quite ridiculous" per Schrödinger's original text. Fled Austria 1938. Dublin Institute for Advanced Studies (1940–1955), invited by de Valera, per Moore. What Is Life? (1944) and influence on Watson and Crick per Watson, DNA, the Secret of Life and Crick, What Mad Pursuit. Vedanta philosophy and "consciousness is absolutely fundamental" per The Observer (1931) and My View of the World (1961). "The task is not so much to see" per Ludwig von Bertalanffy citation. Died in Vienna (January 4, 1961), tuberculosis, age seventy-three. Round Four, essay fifteen. Previous seventy-two essays at nondubito.net.