I read through 4 articles about this and slowly felt my intelligence slipping away. First, we are observing a mass loss, the star has shrunk in on itself about 15% in 20 years and could nova or supernova....next year or in a million or never.This may be a cycle that giant stars go through. Second, since Betelgeuse is 640 light years away the image we see happened 640 years ago. It could have nova'ed since then. We will have to wait for the light to get here from that point in time. Finally, if it did supernova'ed it would appear as a very bright daytime star with the size of a dime held 6 feet away. At night it would be bright as the full moon and cast shadows. Kind of like the 1054 AD Super Nova. As for the neutrinos that will gift us with gold and silver...etc.....neutrinos are massless and pass through everything without interacting. At least we are far enough away that the gamma rays from the supernova wont cook us. Two suns in the sky ??? hardly.....days with no night ???? plu..leezzz.