There are lots of Myths and misconceptions about the speed of light, and I’m going to cover several of them in this video. Veritasium video https://www.youtube.com/watch?v=pTn6Ewhb27k PBS Space time on Speed of Causality https://www.youtube.com/watch?v=msVuCEs8Ydo Tom Scott’s video https://www.youtube.com/watch?v=tozuzV5YZ7U Sources: Speed of https://www.forbes.com/sites/quora/2018/07/02/does-anything-other-than-light-travel-at-the-speed-of-light Speed of gravity https://www.sciencealert.com/speed-of-gravitational-waves-and-light-same Sean M. Carroll’s interview https://www.youtube.com/watch?v=fOeLjD-dZjc Graviton http://curious.astro.cornell.edu/physics/137-physics/general-physics/particles-and-quantum-physics/813-what-is-a-graviton-intermediate Neutrinos and supernovae https://physicsworld.com/a/new-correction-to-speed-of-light-could-explain-sn1987-neutrino-burst/ Speed of causality https://www.forbes.com/sites/jillianscudder/2016/06/24/is-cause-effect-limited-by-the-speed-of-light/?sh=514116221a58 https://www.sciencealert.com/watch-why-the-speed-of-light-is-not-about-light Why it slows down https://moviesandscience.com/blog/science/refractive-index http://curious.astro.cornell.edu/about-us/133-physics/general-physics/general-questions/832-is-the-speed-of-light-constant-beginner Polariton https://www.sciencedirect.com/topics/chemistry/polariton https://mappingignorance.org/2018/01/25/what-on-earth-is-a-polariton/ https://www.nature.com/subjects/polaritons Freezing of light https://www.sciencedaily.com/releases/2013/08/130806111151.htm https://physics.aps.org/articles/v6/80 https://physics.aps.org/articles/v10/s25 Speed limit https://www.forbes.com/sites/startswithabang/2018/10/09/the-universe-has-a-speed-limit-and-it-isnt-the-speed-of-light/?sh=a782bac75549 How to measure it https://arxiv.org/pdf/2012.12037.pdf https://www.universetoday.com/149554/theres-no-way-to-measure-the-speed-of-light-in-a-single-direction/ https://arxiv.org/ftp/arxiv/papers/1011/1011.1318.pdf https://users.physics.ox.ac.uk/~rtaylor/teaching/specrel.pdf https://link.springer.com/article/10.1007/s10701-020-00337-5 https://link.springer.com/article/10.1140/epjd/e2012-20524-8 https://arxiv.org/pdf/1212.2259.pdf https://arxiv.org/pdf/1310.1171.pdf https://arxiv.org/pdf/0911.3616.pdf https://aapt.scitation.org/doi/10.1119/1.3160665 https://www.scienceabc.com/pure-sciences/could-what-we-consider-as-the-speed-of-light-be-wrong.html https://spaceaustralia.com/news/one-way-speed-light https://plato.stanford.edu/entries/spacetime-convensimul/ https://link.springer.com/article/10.1007/s12648-012-0112-4 Galaxy distortions https://sites.ualberta.ca/~pogosyan/teaching/ASTRO_122/lect24/lecture24.html https://www.universetoday.com/21998/the-diameter-of-the-milky-way/ https://astronomy.stackexchange.com/questions/43739/how-distorted-will-our-galaxy-be-if-we-are-viewing-it-from-several-thousand-ligh