In a word: emergence. As far as I can tell the impossible things that happen now are in every case manifestations of a new, bigger level of organization. They are the result of large-scale collaboration, or immense collections of information, or global structures, or gigantic real-time social interactions. Just as a tissue is a new, bigger level of organization for a bunch of individual cells, these new social structures are a new bigger level for individual humans. And in both cases the new level breeds emergence. New behaviors emerge from the new level that were impossible at the lower level. Tissue can do things that cells can't. The collectivist organizations of wikipedia, Linux, the web can do things that industrialized humans could not.