Hacker News: speleo

New comment by speleo in "Project Hail Mary – Stellar Navigation Chart"

speleo — Fri, 22 May 2026 04:03:42 +0000

Thank you so much for the blog post! I credited you in the about page, I used your charts as reference for the Astrophage infection graph view with the Petrova mode. I shared your blog with my friends, it was a great read.

New comment by speleo in "Project Hail Mary – Stellar Navigation Chart"

speleo — Thu, 21 May 2026 19:58:29 +0000

Thanks! On my desktop it takes around 20 minutes to generate a full sky render with 1.8 billion stars (down to around 22 magnitude).

New comment by speleo in "Project Hail Mary – Stellar Navigation Chart"

speleo — Thu, 21 May 2026 19:18:08 +0000

Hi there! This is Val, I made the star chart. There's a little "about" blurb you can open in a modal on the site, but I wanted to mention that this demo uses the amazing GAIA DR3 dataset from ESA. I have a Python script that renders all 1.8+ billion stars into custom images, which is what I used for the skybox. The star positions and colors all use the GAIA data (save for a few bright stars not in the set). The data is amazing, and if you have any interest in doing some fun projects with open data I recommend checking it out: https://www.cosmos.esa.int/web/gaia/dr3

New comment by speleo in "Project Hail Mary – Stellar Navigation Chart"

speleo — Thu, 21 May 2026 19:09:34 +0000

Thank you!

New comment by speleo in "Project Hail Mary – Stellar Navigation Chart"

speleo — Thu, 21 May 2026 19:09:07 +0000

You're welcome! I love that channel so much. Their videos and the blog post I link in the about section/citations on the starmap were inspirations for making this.

Project Hail Mary – Stellar Navigation Chart

speleo — Thu, 21 May 2026 16:23:11 +0000

Article URL: https://valhovey.github.io/gaia-mary/

Comments URL: https://news.ycombinator.com/item?id=48225297

Points: 1106

# Comments: 225

Star Color and the Evolution of Space on the Screen

speleo — Wed, 13 May 2026 22:24:52 +0000

Article URL: https://valhovey.github.io/blog/star-color-and-the-evolution-of-space-on-the-screen

Comments URL: https://news.ycombinator.com/item?id=48128399

Points: 2

# Comments: 0

The Exception Butterfly

speleo — Sat, 11 Apr 2026 22:51:30 +0000

Article URL: https://valhovey.github.io/blog/the-exception-butterfly

Comments URL: https://news.ycombinator.com/item?id=47734692

Points: 3

# Comments: 0

New comment by speleo in "The Integers in Our Continuum"

speleo — Sun, 14 Apr 2024 18:04:52 +0000

The Planck length (and other units) are scale factors, not necessarily canonical quantizations of physics. Planck units represent a transition into a scale where the Standard Model, QFT, and other models no longer accurately predict behavior of the system.

The Integers in Our Continuum

speleo — Sun, 14 Apr 2024 11:01:13 +0000

Article URL: https://kylehovey.github.io/blog/the-integers-in-our-continuum

Comments URL: https://news.ycombinator.com/item?id=40030259

Points: 7

# Comments: 2

New comment by speleo in "The Making of Riven (1998) – Remastered [video]"

speleo — Mon, 04 Dec 2023 20:13:23 +0000

This was just remastered in 4K from the original footage and released by Cyan Worlds.

The Making of Riven (1998) – Remastered [video]

speleo — Mon, 04 Dec 2023 20:13:23 +0000

Article URL: https://www.youtube.com/watch?v=JumtB_YY2I4

Comments URL: https://news.ycombinator.com/item?id=38522438

Points: 1

# Comments: 1

New comment by speleo in "Mutually Assured Recursion"

speleo — Sun, 24 Sep 2023 17:52:34 +0000

Thank you for this, I appreciate it! That's unfortunate to hear. I may have to swap out the example I used in this article, and maybe also include a note that this technique has limitations. I think that using compression/Kolmogorov complexity metrics for classification is a fruitful endeavor and that the philosophy of groups like the Hutter Prize are sound, but the kNN + gzip example looks like it has some problems with it.

For anyone else following along, I think the GitHub Issue discussion on the paper's repo is really interesting: https://github.com/bazingagin/npc_gzip/issues/3

New comment by speleo in "Mutually Assured Recursion"

speleo — Sun, 24 Sep 2023 15:36:08 +0000

Interesting, I'd love to see a link to that if you know of it. Here's the original paper: https://aclanthology.org/2023.findings-acl.426.pdf In my own work I've successfully classified emergent behavior in Cellular Automata using a similar technique, and the technique has also been used elsewhere with success: https://www.nature.com/articles/s41598-022-12826-w

Mutually Assured Recursion

speleo — Sat, 23 Sep 2023 19:58:52 +0000

Article URL: https://kylehovey.github.io/blog/mutually-assured-recursion

Comments URL: https://news.ycombinator.com/item?id=37626888

Points: 25

# Comments: 4

Mathematical Blind Spots

speleo — Sat, 12 Nov 2022 01:01:11 +0000

Article URL: https://kylehovey.github.io/blog/

Comments URL: https://news.ycombinator.com/item?id=33568849

Points: 1

# Comments: 0

Visualizing Algebraic Numbers

speleo — Fri, 20 Nov 2020 03:37:29 +0000

Article URL: https://im.icerm.brown.edu/portfolio/visualizing-algebraic-numbers/

Comments URL: https://news.ycombinator.com/item?id=25157100

Points: 1

# Comments: 0

Turing's Hammer – Computation and Chaos

speleo — Sun, 30 Aug 2020 15:19:20 +0000

Article URL: https://kylehovey.github.io/blog/turing-basins

Comments URL: https://news.ycombinator.com/item?id=24323443

Points: 1

# Comments: 0

New comment by speleo in "Digital Astronomy with Cellular Automata"

speleo — Sat, 25 Jul 2020 16:39:28 +0000

Here is a small web-app I made to explore the data (does not support mobile yet, but anything >= the size of a tablet screen should be fine): http://kylehovey.github.io/automata-nebula-explorer/index.ht...

Digital Astronomy with Cellular Automata

speleo — Sat, 25 Jul 2020 16:36:48 +0000

Article URL: https://kylehovey.github.io/blog/automata-nebula

Comments URL: https://news.ycombinator.com/item?id=23950485

Points: 1

# Comments: 1