Oh it's definitely possible to have alternative theories but they get increasingly outlandish as you make small modifications. E.g. "how does a gyroscope know w

Oh it's definitely possible to have alternative theories but they get increasingly outlandish as you make small modifications. E.g. "how does a gyroscope know which star to point at? What happens if the gyroscope points at the middle between two stars? What happens if you point it at a star that has not yet been discovered (e.g. more powerful telescopes reveal it in the future)? Do different stars have different effects?" Trying to answer these questions makes the stellar spheres theory require more and more ad-hoc additions to support.