explainer · HACKER NEWS RECOMMENDATION
The Crisis in Cosmology
PBS Space Time · 3 HN recommenders · 3 recommendation months
Recommended by 3 Hacker News commenters across 3 months (2019–2021).
SignalTube analysis
Among 72 other explainer videos tagged Cosmology & astrophysics, the mean is 2.6 distinct HN recommenders. This video has 3 distinct HN recommenders, about 1.2× that mean. Recommendations span 3 distinct months; the peer average is 2.4 months. This is a data-derived comparison, not a human review or quality rating.
100% of its 3 labeled comments are marked as recommendations or strong recommendations. HN mention years are 2019–2021; those years describe discussion history, not upload date. Its verified runtime is 18 minutes 5 seconds. YouTube lists its publication date as 2019-01-24.
- Channel / speaker
- PBS Space Time
- Verified runtime
- 18m 5s
- YouTube upload date
- 2019-01-24
- Hacker News mention years
- 2019–2021
SAME TOPIC AND FORMAT
Compare with related videos
The comparison cohort uses other explainer videos in Cosmology & astrophysics. “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 |
|---|---|---|---|---|---|---|
| The Crisis in CosmologyCurrent video | 3 | 3 | 100% | — | 18m 5s | 2019-01-24 |
| The Solar Gravitational Lens will Map Exoplanets. Seriously.explainer · Launch Pad Astronomy | 10 | 9 | 65% | No recorded overlap | 23m 32s | 2020-07-18 |
| 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 recommendation in “We've spotted a planet surviving its dying star”. Its short rationale: Layman-friendly explanation of the crisis in cosmology.
The archive classifies this as a strong recommendation in “A new replication crisis: Research that is less likely to be true is cited more”. Its short rationale: Explains the two conflicting Hubble constant estimates.
The archive classifies this as a recommendation in “How Can a Star Be Older Than the Universe?”. Its short rationale: Clear PBS Space Time explanation of inflation and cosmic structure.