scifi levels - looking for link of article

Can anyone help me? I remember having read an article somewhere on the internet about the different stages of science fiction / free thinkers. I've tried searching, but to no avail. I only know that there were four stages and that the last, fourth category was about science fiction thinkers who think really far into the future..how earth, humanity, technology etc will be in 10000+ years. anyone know what I'm talking about? :o

>>9
Sorry, but the laws of physics we know today will still apply a hundred years from now.

Those "laws" are just theories, you know.  It is very much possible that they can be circumvented by some not-so-simple technique that has never occurred in the known history of the universe.