23 ms·

Not to go into much detail, but these author's views are not shared broadly in the cosmology community. There was a recent paper [1] put on the arxiv that talke

Not to go into much detail, but these author's views are not shared broadly in the cosmology community. There was a recent paper [1] put on the arxiv that talked a bit about this. I'm not an expert on supernova cosmology (I work on cosmology using other methods) but people I know who are experts claim there are issues. There are also a ton of other reasons to think that the universe is flat (see the CMB [2]) and to think that there is dark energy (large scale structure [3]). We still have no idea what DE is and it might not be an "Energy" but rather some modification of gravity or something else. But we're pretty confident in the phenomenology - there is something there that appears to be pulling things apart. [1] https://arxiv.org/pdf/1911.06456.pdf https://arxiv.org/pdf/1911.06456.pdf [2] https://physics.stackexchange.com/questions/439535/why-does-the-first-peak-of-the-temperature-power-spectrum-of-cmb-imply-a-flat-un https://physics.stackexchange.com/questions/439535/why-does-... [3] https://www.darkenergysurvey.org/supporting-science/large-scale-structure/ https://www.darkenergysurvey.org/supporting-science/large-sc...

1e10 7y ago
So if the universe is flat does that make the earth flat as well? :-D
- lagadu 7y ago
  Checkmate, round-earthers!
  - csunbird 7y ago
    I am not sure why he was down-voted. It is clearly a sarcastic post.
    - kjeetgill 7y ago
      There's an aversion to "Reddit-like" humor on HN. Especially if a post is a joke without any actual follow-up discussion.
      - craftinator 7y ago
        Yeah, get your disgusting low-brow humor gone, foul beast! We want none of your entry level antics polluting our white collar supremacist abode!
        kjeetgill 7y ago
        I think it's just more about content density. I think most feel the same way about too much meta-hn conversation. Are we on topic? Downvotes are just saying that maybe that comment wasn't welcome in this thread not that you aren't in any thread. It's a much cleaner downvote than those against controversial, but thought out opinions.
        dang 7y ago
        scott_s said it best: https://news.ycombinator.com/item?id=7609289 https://news.ycombinator.com/item?id=7609289 The issue isn't humor, it's lame humor, which is the kudzu of the internet. https://hn.algolia.com/?dateRange=all&page=0&prefix=true&sort=byDate&type=comment&query=kudzu%20by:dang https://hn.algolia.com/?dateRange=all&page=0&prefix=true&sor...
      - ic147 7y ago
        I find it funny that a nearly identical comment (different wording, but ssame joke and no follow-up) in this thread hasn't been receiving the same negative attention.
- badrabbit 7y ago
  It's a matter of perspective. It is certainly not flat from the perspecticve of our 5 basic senses.
  - DougN7 7y ago
    I’d say our 5 basic senses that have a very limited reach would claim the earth is flat. Of course it is not flat though (just to be clear).
    - badrabbit 7y ago
      Not if you're an astronaut or pay attention to the horizons curvature and other simple observations.
- Shorel 7y ago
  I think it is flat in the sense that our 3D space has no curvature beyond the provided by gravity. Of course this is totally different than saying it is 2D flat. We know this because of cats.

1e10 7y ago

So if the universe is flat does that make the earth flat as well? :-D

lagadu 7y ago
Checkmate, round-earthers!
- csunbird 7y ago
  I am not sure why he was down-voted. It is clearly a sarcastic post.
  - kjeetgill 7y ago
    There's an aversion to "Reddit-like" humor on HN. Especially if a post is a joke without any actual follow-up discussion.
    - craftinator 7y ago
      Yeah, get your disgusting low-brow humor gone, foul beast! We want none of your entry level antics polluting our white collar supremacist abode!
      - kjeetgill 7y ago
        I think it's just more about content density. I think most feel the same way about too much meta-hn conversation. Are we on topic? Downvotes are just saying that maybe that comment wasn't welcome in this thread not that you aren't in any thread. It's a much cleaner downvote than those against controversial, but thought out opinions.
      - dang 7y ago
        scott_s said it best: https://news.ycombinator.com/item?id=7609289 https://news.ycombinator.com/item?id=7609289 The issue isn't humor, it's lame humor, which is the kudzu of the internet. https://hn.algolia.com/?dateRange=all&page=0&prefix=true&sort=byDate&type=comment&query=kudzu%20by:dang https://hn.algolia.com/?dateRange=all&page=0&prefix=true&sor...
    - ic147 7y ago
      I find it funny that a nearly identical comment (different wording, but ssame joke and no follow-up) in this thread hasn't been receiving the same negative attention.
badrabbit 7y ago
It's a matter of perspective. It is certainly not flat from the perspecticve of our 5 basic senses.
- DougN7 7y ago
  I’d say our 5 basic senses that have a very limited reach would claim the earth is flat. Of course it is not flat though (just to be clear).
  - badrabbit 7y ago
    Not if you're an astronaut or pay attention to the horizons curvature and other simple observations.
Shorel 7y ago
I think it is flat in the sense that our 3D space has no curvature beyond the provided by gravity. Of course this is totally different than saying it is 2D flat. We know this because of cats.