3 ms·
> Just as a universe where all distances are multiplied by two is indistinguishable from the current universe. Uh, wouldn't you have a speed of light problem?
by jfoutz 9y ago
> Just as a universe where all distances are multiplied by two is indistinguishable from the current universe.
Uh, wouldn't you have a speed of light problem? I think most of the fundamental forces are all inverse square laws, which would also make things weird.
I'm sure you have a much better understanding that my casual interest. But, uh, simple linear scaling seems detectable.
- lmm 9y agoI mean a universe in which the speed of light was multiplied by two, and so was every linear distance measure.
- jfoutz 9y agoso the earth is twice as big, but the same mass? seems like there are some detectable changes there. but maybe you're increasing mass in a really tricky way. it'll need to be more than double to have the same effect. at a given distance. The other one that seems like it would be tough is strength of a magnetic field. inverse cube law, rather than inverse square. seems really hard to do something and get the same answers.