What are the chances that gravity even exists as we imagine it today?
I mean where the fuck are my gravitons man? We've been looking for them for more than half a century and all we got is this lame higgs boson. Alien tech would probably mindful the shit our of us because their physics is so much closer to the realities of nature, thus allowing them to exploit it, assuming there isn't some horrifying thing about civilizations always killing themselves off before creating self sustaining space colonies or some such.
gravity waves travel at light speed and require ENORMOUS energy to create. Something like all the matter of 3 suns converted into pure energy to create a tiny 0.4 second blip. There's is literally no benefit over using regular microwaves.
>A signal sent in all directions and still detectable with primitive as fuck equipment from 2 billion light years away? I think that's a bit more energy than we need, don't you?
Ask yourself this: did it take the wave to get here 2 billion years as well? If yes, would then it not be a fucking retarded way to communicate? I don`t think anyone would want to go around releasing and wasting unimaginable amount of energy just to do morse at the speed of light. If aliens communicate I don`t think the way they do it is they clap black holes together like retards.
Come on m8 just imagine how this would work. You are this super advanced alien civilization. You have this tech that creates ripples of gravity and you use it for communication. Now as far as I know but I might be terribly wrong here the signals scientist were able to detect was like two massive black holes colliding. So you can imagine, if you want your signals to be measured at that distance, even with super advanced tech you would have to release these mass amounts of energies that can be detected. Now you can argue that instruments get better at measuring as they advance and you might be able to reduce the energy required to create a detectable signal but how much better can it get? So you might have this 2000% advanced tech, but you would still need to release the energy of what? Like colliding two stars? Then you could do some sort of morse that if you create a ripple and it gets detected its 1 and if there is silence thats a 0 and you can keep releasing these energies but it wouldnt work like a lightswitch on / off. Then whatever you`re using to create the signals have to survive the process as well it has to turn on and release this vast amount of energy again and keep sending the signals. Now an advanced civilization that could do that could probably easily just travel there at light speed (which is the same speed as these ripples would travel) so what would be the fucking point? They could just go there and have a discussion and bring a message back or something.
>>7852516 >if you want your signals to be measured at that distance
The point was that that is many orders of magnitude farther than anyone would be sending signals to their colonies or whatever. Like 10^8 times farther. Which means you need 10^16 times as much energy. And our detectors are just a couple of kilometers long. An advanced detector could be synced up spacecraft, i.e. the size of a solar system, i.e. another 10^9 times as sensitive just by sheer size, disregarding all other tech. So already we've reduced the energy requirements by a factor of 10^25, without even doing anything particularly clever. Now I have to assume there are other ways to increase sensitivity besides brute force, and presumably more efficient ways to send signals than just smashing big stuff together. I don't know. I just think it's very premature to say it's a useless idea.
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