My, aren't we optimistic? Are you arguing in favor of nihilism now?
Er, no. Most species
do die out, leaving no offspring. Here's a quick read on the subject:
http://www.findarticles.com/p/articles/mi_m1200/is_18_163/ai_101941077
The statement that most species die out has nothing to do with my outlook on life, it rather has to do with what the evidence says happened.
Now, as to communication, what you're saying makes absolutely no sense. Life forms on the Earth have absolutely no possible way of knowing of the existence of, for example, Mars, Venus, Mercury, Saturn, Neptune, Pluto, Ceres, or any of the stars without looking at them. If life forms on this Earth cannot possibly be affected by any of the motions of these celestial bodies, then how can you say gravity is a form of communication?
Now, we do know they are there because we can visually see them. But does that light have any effect? Not really. Sure, there is some very limited effect in allowing animals to see at night, and allowing humans to wonder about them, but you could substitute
any light source for the
exact same effect.
But what's more, there is no one single possible thing that we could ever do here on Earth that would have
any effect on a single one of these celestial bodies. Not one. Not the sun, our own moon, any planets, and certainly not any stars. For communication to be occurring, it
must be two-way.
Fanciful speculation. You seem to have the complexity of the multiverse all figured out. I suggest that the earth might have a problem if the rest of the universe blinked out of existence. You may be thinking of a Star Trek episode.
Scientifically we'd have a conundrum trying to explain it. But as long as the Earth, our moon, and our sun still existed, we'd have no lasting problems.
As for the sun not caring about any other stars, this is because I have some understanding of the physics of what makes stars tick.
Nope. Try space and time. I believe that your perspective is much too narrow.
Spacetime is not a
force. It's simply a property of our universe.
Not within the context of multidimensional existence.
This makes no difference. Since we have not yet detected a fifth force, it must either be short range or very weak. Some of the extra forces that would arise in the context of extra dimensions would be short-range. Because it mus be either short range or very weak, it can have no tangible effect on reality today, and thus cannot provide a means of communication. This is simply because the currently-known physics describes reality to tremendous accuracy, more than enough to explain all of chemistry.
Anyway, the point is that you shouldn't go talking as if physics can't explain our universe if you don't even understand physics in the first place.