The World Would Be Psychedelic as Hell If the Speed of Light Was Way Slower
One of the reasons that it took several hundred years for us to get from Newtonian mechanics to general relativity is that the dramatic relativistic effects predicted by Albert Einstein’s equations only manifest noticeably at significant fractions of the speed of light—and the speed of light is very, very fast. In everyday life, the only thing that moves anywhere near as fast as light is, well, light, so we simply don’t notice the infinitesimal differences between the predictions of Einstein’s theory and those of Newton’s. To be clear, those differences can and do affect our lives—famously, for instance, GPS wouldn’t work if we didn’t take relativity into account.
- ▪One of the reasons that it took several hundred years for us to get from Newtonian mechanics to general relativity is that the dramatic relativistic effects predicted by Albert Einstein’s equations only manifest noticeably at significant fr
- ▪In everyday life, the only thing that moves anywhere near as fast as light is, well, light, so we simply don’t notice the infinitesimal differences between the predictions of Einstein’s theory and those of Newton’s.
- ▪To be clear, those differences can and do affect our lives—famously, for instance, GPS wouldn’t work if we didn’t take relativity into account.
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Record
| Original publisher | Gizmodo |
| Canonical URL | https://gizmodo.com/the-world-would-be-psychedelic-as-hell-if-the-speed-of-light-was-way-slower-2000811889 |
| Publication time | Wed, 16 Sep 2026 09:00:15 +0000 |
| Retrieval time | 2026-09-16T09:03:41.601Z |
| Last seen | 2026-09-16T09:03:41.601Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | 81nsTAI_Svn3 · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
One of the reasons that it took several hundred years for us to get from Newtonian mechanics to general relativity is that the dramatic relativistic effects predicted by Albert Einstein’s equations only manifest noticeably at significant fractions of the speed of light—and the speed of light is very, very fast. In everyday life, the only thing that moves anywhere near as fast as light is, well, light, so we simply don’t notice the infinitesimal differences between the predictions of Einstein’s theory and those of Newton’s. To be clear, those differences can and do affect our lives—famously, for instance, GPS wouldn’t work if we didn’t take relativity into account.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Gizmodo.
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