# @gravitonomy on Instagram

- **Type:** Image
- **Original URL:** https://www.instagram.com/p/Da5xzH9P9EP
- **Gondola URL:** https://gondola.cc/posts/67919175-gravitonomy-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/54b2d386fd.jpg
- **Posted:** 2026-07-17T17:42:53.000+00:00
- **Account Owner:** Gravitonomy (@gravitonomy) — https://gondola.cc/gravitonomy

## Caption

Quantum delayed choice experiments show that quantum particles do not behave as if they have fixed properties before they are measured. Instead, they exist in multiple possible states, and the outcome depends on how scientists choose to observe them. The measurement itself plays a fundamental role in determining what can be known about the particle.

In delayed choice experiments, researchers can decide how to measure a particle after it has already traveled through an experimental setup. Surprisingly, the results are still consistent with that later measurement choice, suggesting that quantum systems are not committed to a single classical history beforehand.

More advanced versions use entangled particles and reveal that quantum information is deeply dependent on the measurement context. These experiments do not imply time travel, but they demonstrate that the relationship between observation, information, and physical reality is far stranger than our everyday understanding of cause and effect.

MLA Source (Peer Reviewed Paper):
Ma, Xiao Song, Johannes Kofler, and Anton Zeilinger. "Delayed Choice Gedankexperiments and Their Realizations." Reviews of Modern Physics, vol. 88, no. 1, 2016, p. 015005. https://doi.org/10.1103/RevModPhys.88.015005

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#quantumphysics #quantummechanics #science #physics #timetravel

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## Tags

quantumphysics, science, quantummechanics, physics, timetravel

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