https://www.nature.com/articles/s41586-025-09215-4 centaur https://techxplore.com/news/2025-07-centaur-ai.html https://alien-project.org/ https://news.ycombinator.com/item?id=27472224 https://gama-platform.org/ https://news.ycombinator.com/item?id=34998854 https://news.ycombinator.com/item?id=40179340 https://simulator.atterwind.info/ Sail https://news.ycombinator.com/item?id=43775283 https://alvinng4.github.io/grav_sim/5_steps_to_n_body_simulation/ https://news.ycombinator.com/item?id=46430829