lol.
...so since we're talking purely mathematical manipulation, time ought to be destroyed by travelling exactly at c, since that would create a divide by zero error in the space time continuum! rofl.
1) No. If you really need to be explained why light is constant for all reference frames, refrain from claiming to know relativity well.
2) Neutrinos can exist as discrete particles. They have their own mass, and even oscillate between different types of themselves.
..and on the third point; not only do neutrinos not come from the future since they do not travel faster than c, but they interact so weakly with matter there's no biological mechanism that could possibly detect a considerable amount of them, much less interpret them into something usefull, and such gathering and decoding would require some sort of supernatural explanation, which I no doubt expect you to soon advocate.