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The Spilhaus Projection: A world map according to fish

• 14 Comments
• (Very) little bits of past discussion. Others?
  The Spilhaus World Ocean Map in a Square (2020) - https://news.ycombinator.com/item?id=36498614 - June 2023 (2 comments)
  A far-sighted Minnesota scientist pointed America toward the future - https://news.ycombinator.com/item?id=35756976 - April 2023 (2 comments)
  A world map that’s all about oceans - https://news.ycombinator.com/item?id=33816910 - Dec 2022 (1 comment)

  By dang 10 hours ago

• This article has a well-researched history and many versions of the map:
  https://storymaps.arcgis.com/stories/756bcae18d304a1eac140f1...

  By mmooss 3 hours ago

• According to saltwater fish... What about all of the freshwater fish?
  Cool map though!

  By ggerules 11 hours ago

• Freshwater fish have multiple, much smaller maps which have no connection to each other.

  By normie3000 10 hours ago

• Are rivers 2d or 1d?

  By dvh 10 hours ago

• 3d

  By edoceo 10 hours ago

• 4d when they flow

  By stronglikedan 4 hours ago

• Not to mention that no fish would have any insight into at least whatever is within visible distance from the shore surface. An accurate version of such a map would highlight an interesting perspective of how humans also lack the ability to perceive, comprehend, or even accept things they either physically or psychologically cannot perceive or do not wish to perceive and accept it.

  By hopelite 10 hours ago

• More importantly, I imagine a 2D map would not be useful for fish: there is much more space to represent when you can also swim up and down.

  By fph 9 hours ago

• the fish need more data:
  - depths https://www.horizont.net/news/media/8/Die-Schaup-des-jeweil-...
  - and temperature https://www.esri.com/arcgis-blog/wp-content/uploads/2019/09/...

  By croisillon 9 hours ago

• and salinity

  By cratermoon 3 hours ago

• I may be very easy to amuse but but Spilhaus projection for compact Hausdorff space (the surface of the Earth) tickled my drying bones.
  Seems the landmasses are indeed housing off all that spilled water.
  Humor aside, the first thing it reminded me of is the Quincunx projection. There all the landmass is at the centre and is housed off by the oceans. And you can tile Euclidean space with it.
  https://en.wikipedia.org/wiki/Peirce_quincuncial_projection

  By srean 10 hours ago

• That is an awesome map

  By worik 11 hours ago

• Is there or could there be an equivalent centered on the north geographic pole? I'm aware of Polar Stereographic Projections and similar but they don't unify the oceans the way the Spilhaus does.

  By cratermoon 3 hours ago