Technological advancement, increased complexity of life forms, is the crystallization of the Universe, as it moves from the hot state to the cold state. In other words, the Universe is cooling, and with that cooling comes the emergence of a specific structure. Ultimately, there will be zero energy, and an intricate and unchanging pattern / structure. The spread of life throughout the Universe is merely the side effect of the spreading cooling effect - it is a phenomenon that is expected (not surprising) based upon the makeup of the Universe. Life (ie. the propagation of more and more complex forms) is an artefact of the cooling Universe.