4 ms·

An aside: 3D cellular automata https://www.youtube.com/watch?v=_W-n510Pca0 https://www.youtube.com/watch?v=_W-n510Pca0

DonHopkins 7y ago
Very beautiful and artistically rendered! Those would make great fireworks and weapons in Minecraft! From a different engineering perspective, Dave Ackley had some interesting things to say about the difficulties of going from 2D to 3D, which I quoted in an earlier discussion about visual programming: https://news.ycombinator.com/item?id=18497585 https://news.ycombinator.com/item?id=18497585 David Ackley, who developed the two-dimensional CA-like "Moveable Feast Machine" architecture for "Robust First Computing", touched on moving from 2D to 3D in his retirement talk: https://youtu.be/YtzKgTxtVH8?t=3780 https://youtu.be/YtzKgTxtVH8?t=3780 "Well 3D is the number one question. And my answer is, depending on what mood I'm in, we need to crawl before we fly." "Or I say, I need to actually preserve one dimension to build the thing and fix it. Imagine if you had a three-dimensional computer, how you can actually fix something in the middle of it? It's going to be a bit of a challenge." "So fundamentally, I'm just keeping the third dimension in my back pocket, to do other engineering. I think it would be relatively easy to imaging taking a 2D model like this, and having a finite number of layers of it, sort of a 2.1D model, where there would be a little local communication up and down, and then it was indefinitely scalable in two dimensions." "And I think that might in fact be quite powerful. Beyond that you think about things like what about wrap-around torus connectivity rooowaaah, non-euclidian dwooraaah, aaah uuh, they say you can do that if you want, but you have to respect indefinite scalability. Our world is 3D, and you can make little tricks to make toruses embedded in a thing, but it has other consequences." Here's more stuff about the Moveable Feast Machine: https://news.ycombinator.com/item?id=15560845 https://news.ycombinator.com/item?id=15560845 https://news.ycombinator.com/item?id=14236973 https://news.ycombinator.com/item?id=14236973 The most amazing mind blowing demo is Robust-first Computing: Distributed City Generation: https://www.youtube.com/watch?v=XkSXERxucPc https://www.youtube.com/watch?v=XkSXERxucPc And a paper about how that works: https://www.cs.unm.edu/~ackley/papers/paper_tsmall1_11_24.pdf https://www.cs.unm.edu/~ackley/papers/paper_tsmall1_11_24.pd... Plus there's a lot more here: https://movablefeastmachine.org/ https://movablefeastmachine.org/ Now he's working on a hardware implementation of indefinitely scalable robust first computing: https://www.youtube.com/channel/UC1M91QuLZfCzHjBMEKvIc-A https://www.youtube.com/channel/UC1M91QuLZfCzHjBMEKvIc-A
- Iv 7y ago
  > Very beautiful and artistically rendered! Those would make great fireworks and weapons in Minecraft! Someone coded similar things in minetest, the open source clone of minecraft: https://forum.minetest.net/viewtopic.php?f=9&t=17608 https://forum.minetest.net/viewtopic.php?f=9&t=17608

Very beautiful and artistically rendered! Those would make great fireworks and weapons in Minecraft! From a different engineering perspective, Dave Ackley had some interesting things to say about the difficulties of going from 2D to 3D, which I quoted in an earlier discussion about visual programming: https://news.ycombinator.com/item?id=18497585 https://news.ycombinator.com/item?id=18497585 David Ackley, who developed the two-dimensional CA-like "Moveable Feast Machine" architecture for "Robust First Computing", touched on moving from 2D to 3D in his retirement talk: https://youtu.be/YtzKgTxtVH8?t=3780 https://youtu.be/YtzKgTxtVH8?t=3780 "Well 3D is the number one question. And my answer is, depending on what mood I'm in, we need to crawl before we fly." "Or I say, I need to actually preserve one dimension to build the thing and fix it. Imagine if you had a three-dimensional computer, how you can actually fix something in the middle of it? It's going to be a bit of a challenge." "So fundamentally, I'm just keeping the third dimension in my back pocket, to do other engineering. I think it would be relatively easy to imaging taking a 2D model like this, and having a finite number of layers of it, sort of a 2.1D model, where there would be a little local communication up and down, and then it was indefinitely scalable in two dimensions." "And I think that might in fact be quite powerful. Beyond that you think about things like what about wrap-around torus connectivity rooowaaah, non-euclidian dwooraaah, aaah uuh, they say you can do that if you want, but you have to respect indefinite scalability. Our world is 3D, and you can make little tricks to make toruses embedded in a thing, but it has other consequences." Here's more stuff about the Moveable Feast Machine: https://news.ycombinator.com/item?id=15560845 https://news.ycombinator.com/item?id=15560845 https://news.ycombinator.com/item?id=14236973 https://news.ycombinator.com/item?id=14236973 The most amazing mind blowing demo is Robust-first Computing: Distributed City Generation: https://www.youtube.com/watch?v=XkSXERxucPc https://www.youtube.com/watch?v=XkSXERxucPc And a paper about how that works: https://www.cs.unm.edu/~ackley/papers/paper_tsmall1_11_24.pdf https://www.cs.unm.edu/~ackley/papers/paper_tsmall1_11_24.pd... Plus there's a lot more here: https://movablefeastmachine.org/ https://movablefeastmachine.org/ Now he's working on a hardware implementation of indefinitely scalable robust first computing: https://www.youtube.com/channel/UC1M91QuLZfCzHjBMEKvIc-A https://www.youtube.com/channel/UC1M91QuLZfCzHjBMEKvIc-A

Iv 7y ago
> Very beautiful and artistically rendered! Those would make great fireworks and weapons in Minecraft! Someone coded similar things in minetest, the open source clone of minecraft: https://forum.minetest.net/viewtopic.php?f=9&t=17608 https://forum.minetest.net/viewtopic.php?f=9&t=17608