Comment by ac794

I see what you're saying and agree that we probably would have noticed the discrepancies in GPS positioning pretty quickly if we had tried to make it work without knowing about general relativity (GR). But it took _Einstein_ the better part of a decade to develop GR. Even if he hadn't existed, GR still would have had to be discovered by scientists using public funding. What company would pay someone to work on this problem for 10 years without a guarantee of success?

I also don't think there is a strong correlation between studying things close-by, e.g. in our solar system, and how useful the finding will be. Our next break through in particle physics may come from studying dark matter, black holes or quasars. Maybe that will help us build even better computers? Or faster than light communication? We don't know where the treasure is buried!