The big advantage of neutrinos for communication is that you could send them right through the earth so you could reach a submarine or something without any satellites. There's also the crazy story that never goes away that neutrinos might go faster than light. The result
https://en.wikipedia.org/wiki/2011_OPERA_faster-than-light_n...
was absurdly too fast because neutrinos from most sources have a huge energy compared to the neutrino rest mass so their speed is always very close to the speed of light whether they go just a hair faster or a hair slower. Unless you count an early event that most scientists don't, there was no sign of neutrino dispersion in
https://en.wikipedia.org/wiki/SN_1987A
However when people try to measure the neutrino mass squared they get answers that are within the error bars of zero but trend negative
https://www.mdpi.com/2073-8994/14/6/1172
If the neutrino was a tachyon and you could make super-lower energy neutrinos than maybe you could use it as an FTL communicator.
When I want to tell people about “aliens”, I want to say, they (visitors to the Earth) aren’t the biggest, craziest secret.
American Thought Control, and thought controlled Americans are the big crazy secret. We are not alone in our own minds. Secretive communities of humans (more than one) have long since mastered this technology of consciousness (and employ it as a secret governance of power among us.)
These are as great a reason as any other that we humans and our visitors cannot really be friends. There are occult societies of haters among us.
Talk of our visitors is often rife in communities of Power. The only problem is thought controlled Americans would not tolerate the discussion of anything true, for these are they who screw with you.