Wow how did you come up with such idea? I know Facebook is interested in crypto but they are thinking about creating their own token if I'm not mistaken, so why are you saying that they will buy litecoin? Right now bitcoin dominance is increasing and I think it will continue to increase at least until it reaches 45% or 50% again. People were all around ICOS and altcoins, but now they know that some projects are simply not worth it, and will go back to the most stable ones, like bitcoin, and ethereum, etc.