<< We are in the very dangerous and difficult process of becomming a Type One Civilization. While the odds of us making it don't look good, we will, if we make it, be able from there to look forward to achieving
Type Two, Three, and then Four. We will, at Type four, essentially be like the Q. The demise of the sun will have long ceased to be a problem. >>
The last time I read, the highest was Type III. Type 0 is where we are now, Type I is a civilization that harnesses the energy of their planet, Type II their solar system (star included) and Type III their galaxy. By Type IV do you mean to suggest that a civilization can control the universe? That would be so impossible. But anyway, the human race will probably reach Type III within a couple million years (assuming we make it that long).