I mean, that's why people do theoretical physics in higher dimensions and then search desperately for ways to test their theories. We can extrapolate with mathe

I mean, that's why people do theoretical physics in higher dimensions and then search desperately for ways to test their theories. We can extrapolate with mathematics in infinite ways, but until we can find ways to test things it's hard to do better than "find the simplest explanation that accounts for what you can observe".