I don’t think that anyone made the claim that FTL travel is possible; they merely said that there’s still so much we don’t know about the universe, so definitel

I don’t think that anyone made the claim that FTL travel is possible; they merely said that there’s still so much we don’t know about the universe, so definitely ruling something out is a bit rash. With our current understanding of the universe, yes, indeed, FTL travel is not possible. But it’s naïve to think that our understanding of universe won’t change.