Nobody would be communicating with neutrinos or gravitational energy. EM radiation is way easier to emit and detect, and at cosmic distances they all scale exac

Nobody would be communicating with neutrinos or gravitational energy. EM radiation is way easier to emit and detect, and at cosmic distances they all scale exactly identically (inverse square law). The other things you mentioned are mostly sci-fi inventions and there’s nothing in known or unknown physics that would hint towards them being plausible communication media. It’s not about being shortsighted, it’s about everyone being constrained by the same laws of physics. Our models, however imperfect, are still unreasonably good.