Your point 3 cannot be shown with current scientific methods and is overall implausible. Popper argues that in his non-reductionist 3 Worlds Theory. It is extre

Your point 3 cannot be shown with current scientific methods and is overall implausible. Popper argues that in his non-reductionist 3 Worlds Theory. It is extremely hard to find halfway convincing reductionist explanations for the simplest human phenomena, let alone the whole of our cultural and technological products and advances. In my opinion, emergence is more plausible than any of the reductionist stories. However, as a computationalist, I consider it possible that similar phenomena could emerge on any computational device.