5 ms·
One weird thing about time is that it’s sign is “flipped” in the spacetime distance equation. So, while in some sense it’s “just another dimension”, it behaves
by fiddlerwoaroof 5y ago
One weird thing about time is that it’s sign is “flipped” in the spacetime distance equation. So, while in some sense it’s “just another dimension”, it behaves somewhat differently from the spatial dimensions when measuring distance.
(I’m not an expert, just remembering something I found interesting in Einstein’s book _Relativity_)
- dmd 5y agoFor what happens if the sign is NOT flipped, see https://www.gregegan.net/ORTHOGONAL/ORTHOGONAL.html#CC https://www.gregegan.net/ORTHOGONAL/ORTHOGONAL.html#CC
- fiddlerwoaroof 5y agoThis is a really cool sort of science fiction: attempting to build a story around a world where some fundamental scientific law has been adjusted.