https://en.wikipedia.org/wiki/Michelson%E2%80%93Morley_experiment https://en.wikipedia.org/wiki/Michelson%E2%80%93Morley_exper.... They've been working on gett

https://en.wikipedia.org/wiki/Michelson%E2%80%93Morley_experiment https://en.wikipedia.org/wiki/Michelson%E2%80%93Morley_exper.... They've been working on getting a lower bound as recently as 2013! https://pubmed.ncbi.nlm.nih.gov/25167384/ https://pubmed.ncbi.nlm.nih.gov/25167384/