Three things I learned are, people in California are making an invisibility cloak, it's only the size of a grain of sand, and when it's here it'll be much better than the already awesome J.K. Rowling's fantasy. Two questions I have are ..... By using gold, wouldn't it make a cloak like that SO expensive that nobody could afford it? and Why make a prototype so small that you can barely see it? One opinion I have is , Those people are awesome! Talk about pursuing dreams, I mean going out and making something that was fiction not fiction anymore.