"On the other hand, we don't understand the theory too completely, and because of this fuzziness of spacetime, the very concept of spacetime and spacetime dimensions isn't precisely defined"
About this Quote
The intent is less to mystify than to relocate certainty. Witten is speaking from the frontier where string theory, quantum gravity, and high-level geometry collide, a place where you can compute with astonishing precision yet lack a settled ontology. “On the other hand” signals an internal debate: yes, these frameworks explain a lot; no, they don’t yet tell us what the world is made of in clean conceptual terms. The subtext is that physics is still negotiating what counts as fundamental: fields? strings? information? Something even less intuitive?
Context matters because Witten’s authority comes from making math do physical work. When he admits spacetime isn’t “precisely defined,” it’s not defeatism; it’s a warning about premature realism. The rhetorical power lies in its inversion: instead of claiming a new dimension, he questions the definition of “dimension” itself. In a culture that treats more data as the cure for uncertainty, Witten is pointing to a different limit - the possibility that our core nouns are the problem.
Quote Details
| Topic | Science |
|---|---|
| Source | Help us find the source |
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Citation Formats
APA Style (7th ed.)
Witten, Edward. (2026, January 15). On the other hand, we don't understand the theory too completely, and because of this fuzziness of spacetime, the very concept of spacetime and spacetime dimensions isn't precisely defined. FixQuotes. https://fixquotes.com/quotes/on-the-other-hand-we-dont-understand-the-theory-49365/
Chicago Style
Witten, Edward. "On the other hand, we don't understand the theory too completely, and because of this fuzziness of spacetime, the very concept of spacetime and spacetime dimensions isn't precisely defined." FixQuotes. January 15, 2026. https://fixquotes.com/quotes/on-the-other-hand-we-dont-understand-the-theory-49365/.
MLA Style (9th ed.)
"On the other hand, we don't understand the theory too completely, and because of this fuzziness of spacetime, the very concept of spacetime and spacetime dimensions isn't precisely defined." FixQuotes, 15 Jan. 2026, https://fixquotes.com/quotes/on-the-other-hand-we-dont-understand-the-theory-49365/. Accessed 12 Feb. 2026.




