explainer · HACKER NEWS RECOMMENDATION
Does Time Cause Gravity?
PBS Space Time · 1 HN recommenders · 1 recommendation months
Recommended by 1 Hacker News commenters across 1 months (2021–2023).
SignalTube analysis
Among 81 other explainer videos tagged Fundamental physics, the mean is 2.8 distinct HN recommenders. This video has 1 distinct HN recommenders, below that mean. Recommendations span 1 distinct month; the peer average is 2.5 months. This is a data-derived comparison, not a human review or quality rating.
33% of its 3 labeled comments are marked as recommendations or strong recommendations. HN mention years are 2021–2023; those years describe discussion history, not upload date. Its verified runtime is 11 minutes 51 seconds. YouTube lists its publication date as 2021-02-24.
- Channel / speaker
- PBS Space Time
- Verified runtime
- 11m 51s
- YouTube upload date
- 2021-02-24
- Hacker News mention years
- 2021–2023
SAME TOPIC AND FORMAT
Compare with related videos
The comparison cohort uses other explainer videos in Fundamental physics. “Shared recommenders” counts HN users who recommended both videos in the source graph.
| Video | HN recommenders | Recommendation months | Positive label share | Shared recommenders | Runtime | Upload date |
|---|---|---|---|---|---|---|
| Does Time Cause Gravity?Current video | 1 | 1 | 33% | — | 11m 51s | 2021-02-24 |
| The Speed of Light is NOT About Lightexplainer · PBS Space Time | 8 | 8 | 67% | No recorded overlap | 12m 46s | 2015-10-07 |
| A new way to visualize General Relativityexplainer · ScienceClic English | 8 | 6 | 89% | No recorded overlap | 11m 33s | 2020-09-03 |
| How to Understand What Black Holes Look Likeexplainer · Veritasium | 8 | 4 | 80% | No recorded overlap | 9m 19s | 2019-04-09 |
THREE SOURCE-BASED CONTEXT POINTS
Why Hacker News recommends it
Each note combines the dataset’s stance label and short rationale; comment bodies are not reproduced. Open the HN source for the original discussion.
The archive classifies this as a contextual reference in “Why Gravity Is Not Like the Other Forces”. Its short rationale: Video on the theory that time gradients cause gravity.
The archive classifies this as a strong recommendation in “Four years on, new experiment sees no sign of ‘cosmic dawn’”. Its short rationale: Explains what actually happens when gravity influences an object.
The archive classifies this as a contextual reference in “Particle mystery: physicists confirm the muon is more magnetic than predicted”. Its short rationale: Gravity as arising from time gradients.