I can't believe this story is still going on. It is pure superstition from a British violonist turned fiction writer named Timothy Good. It has been disproved countless times. Humanoid English-speaking aliens is an invention of the 1960's. Nobody knowledgeable believes in aliens except those who cling to vampires, werewolves, witches and ghosts. Why is it still around? Because someone is making money from it selling books.