This idea came out pondering the question if scientific research is limited in what it can achieve. Evolution is the process that can lead to the organization of matter as complex as the human mind. Scientific research can lead to different (not necessarily as complex) organizations of matter. There may be other processes in the universe which do not follow neither evolution nor man's scientific research to achieve even more complex and sophisticated organizations of matter. Maybe plasma effects at the center of stars or similar. The point is that matter may be organized into very complex structures like the mind but through different processes. There may be barriers between one process and another, for example evolution can only lead to a certain subclass of organized matter, man's scientific research can lead to another certain subclass of organized matter but may never be able to reach the class of objects that evolution can. Evolution may never be able to evolve silicon chips without having first evolved man. These may be barriers between progressing processes that limit what each process can achieve. The real point is that matter as such can be potentially organized into very complex structures, we may just never be able to force it past a certain limit. In this sense science may have a limit, but matter may not. And even if matter were organized in an alien very complex structure and internal process, we may not even be able to recognize it!