Erwin Schrodinger — "The universe is a grand illusion. But it is a very persistent one."
The universe is a grand illusion. But it is a very persistent one.
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More from Erwin Schrodinger
"We are living in an age of specialization. This is a dangerous trend."
"What we observe is not nature in itself but nature exposed to our method of questioning."
"The problem of the 'thing in itself' is not a problem that can be solved by science. It is a philosophical problem."
"The future of mankind depends on the wisdom of its leaders. And that is a very frightening thought."
"I am enough of an artist to draw freely upon my imagination."
About Erwin Schrodinger (1887-1961)
Austrian physicist who shared the 1933 Nobel for the wave equation that bears his name and the famous cat thought-experiment. Closely associated with Werner Heisenberg (matrix-mechanics rival who reached the same physics by different math) and Albert Einstein (his pen-pal on quantum interpretation). For an intellectual contrast, see Niels Bohr, Danish physicist and architect of the Copenhagen interpretation — Schrödinger's cat thought-experiment was specifically designed to ridicule Bohr's 'observer-dependent reality' reading of quantum mechanics — Schrödinger thought the Copenhagen interpretation was absurd; the cat was meant as reductio ad absurdum.
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Understanding this quote
What it means
What we call 'the universe' — solid, tangible, ruled by cause and effect — is actually a constructed experience, not ultimate truth. Yet this illusion doesn't flicker or fade; it operates with machine-like reliability. The point isn't nihilism but humility: reality as humans perceive it may be a convincing story the cosmos tells itself, coherent enough to build cities on, yet fundamentally not the deepest layer of what exists.
Relevance to Erwin Schrodinger
Schrödinger's 1926 wave equation revealed that particles don't have fixed positions — they exist as probability waves, becoming 'real' only upon measurement. His cat thought experiment exposed the absurdity of quantum superposition colliding with classical perception. Beyond physics, he studied Vedantic philosophy deeply, which teaches that perceived reality (maya) is illusion. The quote directly echoes both his scientific findings and his lifelong conviction that consciousness, not matter, underlies existence.
The era
The 1920s quantum revolution dismantled Newtonian certainty. Heisenberg proved position and momentum can't both be known simultaneously; Bohr's Copenhagen interpretation said particles have no definite state before observation; Einstein's relativity had already bent space and time. Western science was colliding with Eastern ideas about maya and consciousness. The era forced physicists to ask whether reality was observer-dependent — a question Schrödinger took seriously in both equations and philosophy.
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