I didn't say we'd need black holes not any celestial object. Either we'd need a transmitter with as much mass or energy as black holes, or we need to improve ou

I didn't say we'd need black holes not any celestial object. Either we'd need a transmitter with as much mass or energy as black holes, or we need to improve our detection by many orders of magnitude. Sure it's theoretically possible, but it doesn't seem very likely any time soon. As I said in my post you replied to: > there's going to have to be some significant developments to make this practical.