A friend of mine brought his laptop to me today after it started acting funny, turned out to be over heating problem, since then and I'm thinking.. Why don't they make a cube/container and place the processor in it with liquid Nitrogen around it? Wouldn't that keep it cool forever? I'm not a physicist so its just an idea. I found few videos on Youtube of people doing something similar but not really what I have in mind, but they were doing it "for fun". What do you physics gurus think?