The digital pin-ups' business models actually inhibit serendipity and, indeed, innovation by absorbing entire markets into the sealed-off space of their platforms.
Netflix has seamlessly adapted to new technologies and disrupted existing business models. But unlike traditional media enterprises, Netflix has never tried to attract a mass audience.
Objects of almost any shape or geometry can be produced by 3D printing. The technology could seriously disrupt not just manufacturing but related national plans for economic development.
Apple has ramped up its spending on R&D, but that's no guarantee it is building the 'next big thing'.