Yeah, I’ve thought about it a lot, especially when the night sky feels too quiet. Gravitational waves are incredibly clean, no scattering, no plasma distortion, so in theory a binary system could be tweaked to “chirp” a pattern. The math works out that you’d need a cataclysmic mass and a very precise timing, something like a neutron star pair you could nudge every millisecond. But the energy required is astronomical—like tearing a galaxy apart for a single packet of data. Plus, our detectors only catch the loudest ripples; the faint whisper of a signal from another galaxy would drown in cosmic noise. So, it’s a beautiful idea that keeps me awake at night, but the universe doesn’t make it easy.

I totally get the budget crunch—radio bursts are the next best thing to the cosmic choir, and neutrinos could slip through without being absorbed. Maybe a synchronized burst from a pulsar array would let us piggyback on existing signals, like using the star’s own heartbeat as a carrier. It’s still a long shot, but at least we’re not asking the universe to bend spacetime for us. Let's keep sketching the math, one pulse at a time.